meteorite find Comparison Table

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meteorite find comparison table

Subject has olivine manganese content be an acronym for has olivine CaO content has name has part matrix has olivine MnO content has schreibersite content is independent of has olivine SiO2 content has degree of secondary process has pronunciation has part metal maximum bulk has plagioclase shock metamorphism have composition has shock stage has refractory inclusion abundance has petrologic type range has plagioclase has formation cooling rate has age has peak temperature has distinguishing feature has olivine grain size has degree of aqueous alteration has total iron content has lithic clast composition has gain size parent body radiu has petrologic type has part chondrule has composition has olivine composition uniformity has part feldspar has prototype has shock pressure has pyroxene inclusion has synonym has mass has chondrule mean diameter is an instance of has phosphate content has volatile content has pyroxene shock metamorphism has nickel content has olivine crystal distribution has oxidized iron content has oxidation state has pyroxene content has olivine MgO content has comment has curation location has texture has metal abundance has weathering stage has weather has abundance has olivine Cr2O3 content has minerology has olivine nickel content has olivine shock metamorphism has sediment mechanism has chondrule glass type has minor mineral has characteristic mineral has olivine grain characteristic has matrix abundance has olivine zinc content has orthopyroxene shock metamorphism has alteration temperature range has matrix composition has number of find has olivine grain shape has olivine and low Ca pyroxene homogeneity has metal content has olivine FeO content has degree of thermal metamorphism has homogeneity of olivine and low Ca pyroxene is a kind of has part mean Ni content of sulfide has inclusion minerology has part carbon has chromite content has fall location has degree of shock metamorphism has olivine Fe/Mn ratio has image has iron metal and iron sulfide has olivine cobalt content has part maximum bulk Ni in metal is paired with has olivine composition has olivine content has fall coordinate has letter designation has troilite content has petrology has metal iron content be shock has petrologic subtype has fall map has part sulfide Ni content has likely origin has total mass of find has orthopyroxene composition has metamorphism mechanism has original texture has shock diagnostic mineral has olivine inclusion has property has reference has intergranular boundary has augite composition has olivine scandium content has acronym has find date has olivine chromium content has parent body has chondrule abundance paired with has part water has shock texture has olivine magnesium content has pigeonite composition has structural state of low Ca pyroxene

Abbott Abbott clastic and minor opaque in weight % 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification none high 3 chondrules very sharply defined often minerals not found on Earth minor primary grains only bronzite chondrite 9.5 kg 0.3 millimeters meteorite find polymict regolith breccia 10 % by volume can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls agglomeration of particles, many of which record individual, diverse histories clear, isotropic, variable abundance 10 to 15 % by volume 9 greater than 5 % deviations none definition goes here in weight % 0.2 to 1 % by weight Colfax County, New Mexico
75 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship 36° 18' N., 104° 17' W. 12 to 21 % which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 349 kg 1951 asteroid smaller than 100 km in diameter 60 to 80 % by volume 0.3 to 3 % by weight predominantly monoclinic

Acfer 182 Acfer 182 clastic and minor opaque in weight % 0.1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification elemental carbon none 3 chondrules very sharply defined often minerals not found on Earth minor primary grains only ALH 85085 meteorite 0.02 millimeters meteorite find low 20 % by volume can be severe due to long exposure time to environmental corrosion agents rare relative to other chondrite types agglomeration of particles, many of which record individual, diverse histories clear, isotropic, variable abundance 5 % by volume 1691 greater than 5 % deviations none definition goes here in weight % 0.2 to 1 % by weight Algerian Sahara Desert
greater than 20 % by weight, kamacite and taenite in exsolution relationship 27° 41.40' N., 4° 22.72' E. which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 485755 kg 1991 asteroid smaller than 100 km in diameter about 70 % by volume 0.3 to 3 % by weight predominantly monoclinic

Acfer 277 based on the locale, region, or nearby town in which the fall occurred S4-S6 0 % no chondrules 1 mm often minerals not found on Earth from 20 GPa to 100 GPa meteorite find may be cloudy due to glassy inclusions 0.55, 0.33 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) sub-grain boundaries may be prominent olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity medium Fo% 79 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism diamonds and/or lonsdaleite Baba et al (1993), Bland et al. (1992) curved meeting in triple junctions when the meteorite was found greater extent of fracturing, undulatory extinction, and kink banding Wo% 9.6 En% 73

Albin Albin 0.3 to 2.8 % by volume 2.5 to 4 degrees C per million years mixture of iron-nickel alloy and non-metallic minerals up to 37 mm diamteter 78 to 97 kilometers metallic iron plus olivine; core/mantle boundary samples heterogeneous elements are zoned between grain rim and core 57 kg main group pallasite 1 % or less by volume always greater than 4 % from homogeneous to heterogeneous can be severe due to long exposure time to environmental corrosion agents schreibersite 33 from angular fragments to rounded higher than that of average solar system material 1 % or less by volume Laramine County, 5 miles north of Albin, Wyoming
Fo 88+-1 35 to 85 % by volume 41° 30' N., 104° 6' W. PAL 0.1 to 7.3 % by volume which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 7207 kg 1915

ALH 82106 based on the locale, region, or nearby town in which the fall occurred no chondrules often minerals not found on Earth meteorite find 0.35 in modal pyroxene/(pryroxene+olivine) bi-modal with extremely large 15mm crystals of low-Ca pyroxene poikilitically enclosing domains with ureilite texture can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity ALH 84136 Fo% 95 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Goodrich et al. (1987b), AMN 9-3 Wo% 37 En% 60 when the meteorite was found Wo% 4.9 En% 90

ALH 83014 based on the locale, region, or nearby town in which the fall occurred S1 0 % no chondrules 1 mm often minerals not found on Earth less than 5 GPa meteorite find 0.13 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity unshocked Fo% 82 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism no diamonds or lonsdaleite AMN 8-1 curved meeting in triple junctions when the meteorite was found Wo% 8.0 En% 77

ALHA 77257 based on the locale, region, or nearby town in which the fall occurred S2-S3 0 % no chondrules 1 mm often minerals not found on Earth less than 20 GPa meteorite find 0.16 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) fracturing, undulatory extinction and kink bands olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity low Fo% 85 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism small euhedral graphite crystals can sometimes be distinguished Goodrich et al. (1987b), Goodrich and Berkley (1986), Berkley and Jones (1982) curved meeting in triple junctions when the meteorite was found silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine Wo% 6.8 En% 80

ALHA 78019 based on the locale, region, or nearby town in which the fall occurred S1 0 % no chondrules 1 mm often minerals not found on Earth less than 5 GPa meteorite find 0.05 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity unshocked Fo% 76 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism no diamonds or lonsdaleite Goodrich et al. (1987b), Goodrich and Berkley (1986), Berkley and Jones (1982) curved meeting in triple junctions when the meteorite was found Wo% 9.7 En% 71

ALHA 78262 based on the locale, region, or nearby town in which the fall occurred S2-S3 0 % no chondrules 1 mm often minerals not found on Earth less than 20 GPa meteorite find large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) fracturing, undulatory extinction and kink bands olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity low Fo% 78 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism small euhedral graphite crystals can sometimes be distinguished Goodrich et al. (1987b), Goodrich and Berkley (1986), Berkley and Jones (1982) curved meeting in triple junctions when the meteorite was found silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine Wo% 8.4 En% 72

ALHA81101 based on the locale, region, or nearby town in which the fall occurred shock melted no chondrules much less than 1 mm often minerals not found on Earth 100 GPa or greater meteorite find mottled by melt glass mosaicized can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) completely shattered or mosaicized olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity shock melted Fo% 79 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism visible via dark matrix outlining relict grain boundaries of large, elongate grains, and a common preferred orientation of grains within relict domains -has source: Berkley JL, Taylor GJ, Keil K. Harlow GE, Prinz M 1980, Geochim Cosmochim Acta 44, 1579 -has URL: http://adsabs.harvard.edu/cgi-bin/bib_query?1980GeCoA..44.1579B diamonds and/or lonsdaleite Berkley (1986), Saito and Takeda (1990) when the meteorite was found Wo% 8.1 En% 78

Asuka 87031 based on the locale, region, or nearby town in which the fall occurred S4-S6 0 % no chondrules 1 mm often minerals not found on Earth from 20 GPa to 100 GPa meteorite find may be cloudy due to glassy inclusions 0 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) sub-grain boundaries may be prominent olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity medium Fo% 79 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism diamonds and/or lonsdaleite Yanai and Kojima (1995b) curved meeting in triple junctions when the meteorite was found greater extent of fracturing, undulatory extinction, and kink banding Wo% 7.5 En% 75

Asuka 881931 based on the locale, region, or nearby town in which the fall occurred S2-S3 0 % no chondrules 1 mm often minerals not found on Earth less than 20 GPa meteorite find large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) fracturing, undulatory extinction and kink bands olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity low Fo% 76 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism small euhedral graphite crystals can sometimes be distinguished Yanai and Kojima (1995b) curved meeting in triple junctions when the meteorite was found silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine Wo% 8.8 En% 73

Beeler Beeler transparent, recrystallized, coarse crystals providing insight into geological evolution of parent asteroid in weight % 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification low 6 chondrules poorly defined often minerals not found on Earth secondary, grains greater than 50 microns amphoterite 8.64 kg 0.9 millimeters meteorite find 2 % by volume can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls agglomeration of particles, many of which record individual, diverse histories devitrified, absent 10 to 15 % by volume the range over at which the alteration took place 20 homogeneous strong definition goes here in weight % less than 0.2 % by weight Ness County, Kansas
20 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship 38° 32' N., 100° 13' W. about 2 % which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 715 kg thermal metamorphism 1924 asteroid smaller than 100 km in diameter 60 to 80 % by volume less than 1.5 % by weight orthorhombic

Beenham Beenham transparent, recrystallized, moderate size crystals providing insight into geological evolution of parent asteroid in weight % 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification low 5 chondrules readily delineated often minerals not found on Earth secondary, 2 to 50 micron grains hypersthene chondrite 44.4 kg 0.7 millimeters meteorite find veined 5 % by volume can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls agglomeration of particles, many of which record individual, diverse histories devitrified, absent 10 to 15 % by volume the range over at which the alteration took place 44 homogeneous moderate definition goes here in weight % less than 0.2 % by weight township 25, range 30E., in Union County, New Mexico
50 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship 36° 13 N., 103° 39' W. 5 to 10 % which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 1256 kg thermal metamorphism 1937 asteroid smaller than 100 km in diameter 60 to 80 % by volume less than 1.5 % by weight less than 20 % monoclinic

Bonita Springs Bonita Springs transparent, recrystallized, moderate size crystals providing insight into geological evolution of parent asteroid in weight % 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification high 5 chondrules readily delineated often minerals not found on Earth secondary, 2 to 50 micron grains bronzite chondrite 41.8 kg 0.3 millimeters meteorite find 10 % by volume can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls agglomeration of particles, many of which record individual, diverse histories devitrified, absent 10 to 15 % by volume the range over at which the alteration took place 76 homogeneous moderate definition goes here in weight % less than 0.2 % by weight between Bonita Beach Rd. and Imperial River halfway between U.S. 41 and beach
75 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship 26° 16' N., 81° 41' W. 12 to 21 % which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 1267 kg thermal metamorphism 1938 asteroid smaller than 100 km in diameter 60 to 80 % by volume less than 1.5 % by weight less than 20 % monoclinic

Brenham Brenham 0.3 to 2.8 % by volume 2.5 to 4 degrees C per million years mixture of iron-nickel alloy and non-metallic minerals typically one centimeter 78 to 97 kilometers metallic iron plus olivine; core/mantle boundary samples heterogeneous elements are zoned between grain rim and core 1.5 tons main group pallasite 1 % or less by volume always greater than 4 % heterogeneous some regions have no olivine crystals extreme can be severe due to long exposure time to environmental corrosion agents schreibersite 33 from angular fragments to rounded higher than that of average solar system material 1 % or less by volume Kiowa County, Kansas
Fo 88+-1 35 to 85 % by volume 37° 36' N., 99° 12' W. PAL 0.1 to 7.3 % by volume which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 7207 kg 1882

Cat Mountain Cat Mountain transparent, recrystallized, moderate size crystals providing insight into geological evolution of parent asteroid in weight % 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification low 5 chondrules readily delineated often minerals not found on Earth secondary, 2 to 50 micron grains hypersthene chondrite 0.7 millimeters meteorite find Impact Melt Breccia 5 % by volume can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls agglomeration of particles, many of which record individual, diverse histories devitrified, absent 10 to 15 % by volume the range over at which the alteration took place 44 homogeneous moderate definition goes here in weight % less than 0.2 % by weight Tucson, Arizona
50 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship 32° 8.9' N., 111° 6.7' W. 5 to 10 % which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 1256 kg thermal metamorphism 1980/81 asteroid smaller than 100 km in diameter 60 to 80 % by volume less than 1.5 % by weight less than 20 % monoclinic

Dingo Pup Donga based on the locale, region, or nearby town in which the fall occurred S4-S6 no chondrules often minerals not found on Earth from 20 GPa to 100 GPa meteorite find may be cloudy due to glassy inclusions 0.5 in modal pyroxene/(pryroxene+olivine) size-sorted layers can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) sub-grain boundaries may be prominent olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity medium Fo% 84 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism diamonds and/or lonsdaleite Berkley et. al (1980) euhedral, non-interlocking grains when the meteorite was found greater extent of fracturing, undulatory extinction, and kink banding Wo% 5.0 En% 81

Eagle Station 1.34 milligram/gram using Instrumental Neutron Activation Analysis 0.070 % by weight Eagle Station 0.18 % by weight 38.7 % by weight 2.5 to 4 degrees C per million years mixture of iron-nickel alloy and non-metallic minerals typically one centimeter 78 to 97 kilometers often minerals not found on Earth 36.3 kg meteorite find 1 % or less by volume always greater than 4 % from homogeneous to heterogeneous 42.2 % by weight can be severe due to long exposure time to environmental corrosion agents 0.031 % by weight 45.1 microgram/gram using Instrumental Neutron Activation Analysis 2.4 microgram/gram using Instrumental Neutron Activation Analysis 1691 from angular fragments to rounded higher than that of average solar system material 19.0 % by weight 1 % or less by volume 0.75 miles from Eagle Station, Carroll County, Kentucky 104
26.0 microgram/gram using Instrumental Neutron Activation Analysis more ferroan than main group pallasite 75 to 80 % by volume 38° 37' N., 84° 58' W. PAL which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 485755 kg 2.66 microgram/gram using Instrumental Neutron Activation Analysis 1880 404 microgram/gram using Instrumental Neutron Activation Analysis 79.8 mg# or 100 * Mg/(Mg + Fe)

EET 83225 based on the locale, region, or nearby town in which the fall occurred S4-S6 0 % no chondrules 1 mm often minerals not found on Earth from 20 GPa to 100 GPa meteorite find may be cloudy due to glassy inclusions large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) sub-grain boundaries may be prominent olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity medium Fo% 87 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism diamonds and/or lonsdaleite AMN 8-1 curved meeting in triple junctions when the meteorite was found greater extent of fracturing, undulatory extinction, and kink banding Wo% 10 En% 78

EET 83309 EET 83309 bre - chia common in clasts no chondrules typical monomict ureilite material plus a variety of other lithic clasts often minerals not found on Earth Antarctic meteorite 0.27 in modal pyroxene/(pryroxene+olivine) for monomict ureilitic clasts can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal smaller mineral fragments, carbon, suessite (Fe3Si), sulfides, minor chromite and minor apatite 1691 Elephant Moraine, Antarctica Fo% 80-84 for monomict ureilitic clasts in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Prinz et al. (1987) 1983 Wo% variable En% variable for monomict ureilitic clasts

EET 87511 based on the locale, region, or nearby town in which the fall occurred S2-S3 no chondrules often minerals not found on Earth less than 20 GPa meteorite find bi-modal with extremely large 15mm crystals of low-Ca pyroxene poikilitically enclosing domains with ureilite texture can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) fracturing, undulatory extinction and kink bands olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity low EET 87717 meteorite Fo% 85 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Wo% 4.5 En% 82 shock metamorphism small euhedral graphite crystals can sometimes be distinguished Berkley (1990), AMN 11-2 Wo% 36 En% 55 when the meteorite was found silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine

EET 87517 based on the locale, region, or nearby town in which the fall occurred S2-S3 0 % no chondrules 1 mm often minerals not found on Earth less than 20 GPa meteorite find 0.5 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) fracturing, undulatory extinction and kink bands olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity low Fo% 92 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism small euhedral graphite crystals can sometimes be distinguished AMN 11-2 curved meeting in triple junctions when the meteorite was found silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine Wo% 5.0 En% 87

EET 87720 EET 87720 bre - chia common in clasts no chondrules typical monomict ureilite material plus a variety of other lithic clasts often minerals not found on Earth Antarctic meteorite can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal smaller mineral fragments, carbon, suessite (Fe3Si), sulfides, minor chromite and minor apatite 1691 Elephant Moraine, Antarctica Fo% 79-87 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Warren and Kallemeyn (1991), AMN 12-3, AMN 13-1 Wo% 35 En% 52 1987 Wo% 8.0 En% 83

EET 90019 based on the locale, region, or nearby town in which the fall occurred 0 % no chondrules 1 mm often minerals not found on Earth meteorite find large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity Fo% 89 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg AMN 15-1 curved meeting in triple junctions when the meteorite was found Wo% 10 En% 80

Eustis Eustis transparent, recrystallized, small crystals providing insight into geological evolution of parent asteroid in weight % 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification high 4 chondrules well defined often minerals not found on Earth secondary, grains than 2 microns bronzite chondrite 0.502 kg 0.3 millimeters meteorite find 10 % by volume can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls agglomeration of particles, many of which record individual, diverse histories devitrified, absent 10 to 15 % by volume the range over at which the alteration took place 37 less than 5 % mean deviations weak definition goes here in weight % less than 0.2 % by weight Eustis, Florida
75 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship 28° 50' N., 81° 41' W. 12 to 21 % which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 1251 kg thermal metamorphism 1918 asteroid smaller than 100 km in diameter 60 to 80 % by volume less than 1.5 % by weight greater than 20 % monoclinic

FRO 90036 based on the locale, region, or nearby town in which the fall occurred shock melted no chondrules much less than 1 mm often minerals not found on Earth 100 GPa or greater meteorite find mottled by melt glass mosaicized can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) completely shattered or mosaicized olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity shock melted Fo% 80 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Wo% 3.0 En% 81 shock metamorphism visible via dark matrix outlining relict grain boundaries of large, elongate grains, and a common preferred orientation of grains within relict domains -has source: Berkley JL, Taylor GJ, Keil K. Harlow GE, Prinz M 1980, Geochim Cosmochim Acta 44, 1579 -has URL: http://adsabs.harvard.edu/cgi-bin/bib_query?1980GeCoA..44.1579B diamonds and/or lonsdaleite Baba et al. (1993), Folco (1992) when the meteorite was found FRO 90168 meteorite

FRO 90054 based on the locale, region, or nearby town in which the fall occurred 0 % no chondrules 1 mm often minerals not found on Earth meteorite find 0.58, 0.75 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity FRO 93008 Fo% 87 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Wo% 4.8 En% 84 Folco (1992), Fioretti and Molin (1996) curved meeting in triple junctions Wo% 39 En% 55 when the meteorite was found

Glorieta Mountain 2.04 milligram/gram using Instrumental Neutron Activation Analysis Glorieta Mountain 0.3 to 2.8 % by volume 2.5 to 4 degrees C per million years mixture of iron-nickel alloy and non-metallic minerals typically one centimeter 78 to 97 kilometers metallic iron plus olivine; core/mantle boundary samples heterogeneous elements are zoned between grain rim and core 143 kg main group pallasite 1 % or less by volume always greater than 4 % from homogeneous to heterogeneous can be severe due to long exposure time to environmental corrosion agents 20.8 microgram/gram using Instrumental Neutron Activation Analysis schreibersite 5.9 microgram/gram using Instrumental Neutron Activation Analysis 33 from angular fragments to rounded higher than that of average solar system material 1 % or less by volume ranch of Mrs. Roival near Canonçito, New Mexico, five miles south of Glorieta Mountain
8.19 microgram/gram using Instrumental Neutron Activation Analysis Fo 88+-1 35 to 85 % by volume 35° 34' N., 105° 49' W. PAL 0.1 to 7.3 % by volume which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 7207 kg 2.29 microgram/gram using Instrumental Neutron Activation Analysis 1884 280 microgram/gram using Instrumental Neutron Activation Analysis

Goalpara based on the locale, region, or nearby town in which the fall occurred shock melted no chondrules much less than 1 mm often minerals not found on Earth 100 GPa or greater meteorite find mottled by melt glass 0.33 in modal pyroxene/(pryroxene+olivine) mosaicized can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) completely shattered or mosaicized olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity shock melted Fo% 79 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism visible via dark matrix outlining relict grain boundaries of large, elongate grains, and a common preferred orientation of grains within relict domains -has source: Berkley JL, Taylor GJ, Keil K. Harlow GE, Prinz M 1980, Geochim Cosmochim Acta 44, 1579 -has URL: http://adsabs.harvard.edu/cgi-bin/bib_query?1980GeCoA..44.1579B diamonds and/or lonsdaleite Berkley et. al (1980) when the meteorite was found Wo% 4.4 En% 76

GRA 95205 based on the locale, region, or nearby town in which the fall occurred 0 % no chondrules 1 mm often minerals not found on Earth meteorite find large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity Fo% 79 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Wo% 4.0 En% 77 AMN 20-1 curved meeting in triple junctions when the meteorite was found

Grady (1937) Grady (1937) clastic and minor opaque the nature and degree of thermal metamorphism or aqueous alteration providing insight into geological evolution of parent asteroid in weight % sharp optical extinction, irregular fractures S1 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification none high 3 chondrules very sharply defined often minerals not found on Earth minor primary grains only less than 5 GPa bronzite chondrite 9.3 kg 0.3 millimeters S1 shock stage chondrite 10 % by volume can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls sharp optical extinction, irregular fractures agglomeration of particles, many of which record individual, diverse histories clear, isotropic, variable abundance 10 to 15 % by volume sharp optical extinction, irregular fractures 9 greater than 5 % deviations none definition goes here in weight % 0.2 to 1 % by weight Grady, New Mexico unshocked
75 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship 34° 48' N., 103° 19' W. 12 to 21 % before, during or after other types of metamorphism 3.7 which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 349 kg shock metamorphism orthopyroxene for enstatite chondrite 1937 asteroid smaller than 100 km in diameter 60 to 80 % by volume 0.3 to 3 % by weight predominantly monoclinic

HaH 064 based on the locale, region, or nearby town in which the fall occurred S4-S6 no chondrules often minerals not found on Earth from 20 GPa to 100 GPa meteorite find may be cloudy due to glassy inclusions 0.65 in modal pyroxene/(pryroxene+olivine) bi-modal with extremely large 15mm crystals of low-Ca pyroxene poikilitically enclosing domains with ureilite texture can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) sub-grain boundaries may be prominent olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 Hammadah al Hamra medium Fo% 78 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Wo% 4.6 En% 77 shock metamorphism diamonds and/or lonsdaleite Weber and Bischoff (1996), Weber and Bischoff (1998) Wo% 32 En% 55 HaH when the meteorite was found greater extent of fracturing, undulatory extinction, and kink banding

HaH 119 HaH 119 transparent, recrystallized, small crystals the nature and degree of thermal metamorphism or aqueous alteration providing insight into geological evolution of parent asteroid in weight % undulatory extinction S3 0 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification 4 chondrules well defined enriched in ¹⁷O isotope secondary, grains than 2 microns Rumuruti meteorite 15 to 20 GPa rumurutiite 0.352 kg 0.4 millimeters S3 shock stage chondrite highly oxidized unbecciated 0.1 % by volume W4 can be severe due to long exposure time to environmental corrosion agents planar fractures, undulatory extinction, irregular fractures agglomeration of particles, many of which record individual, diverse histories devitrified, absent 36 % by volume clinoenstatite lamellae on (100), undulatory extinction, planar fractures, irregular fractures the range over at which the alteration took place 1691 less than 5 % mean deviations weak definition goes here in weight % less than 0.2 % by weight Hammadah al Hamra weakly shocked
greater than 20 % by weight, kamacite and taenite in exsolution relationship 28° 30.87' N., 12° 53.81' E. before, during or after other types of metamorphism which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 485755 kg thermal metamorphism orthopyroxene for enstatite chondrite HaH April 1995 asteroid smaller than 100 km in diameter greater than 40 % by volume less than 1.5 % by weight greater than 20 % monoclinic

Hajma Hajmah S4-S6 0 % no chondrules 1 mm often minerals not found on Earth from 20 GPa to 100 GPa 0.596 kg meteorite find may be cloudy due to glassy inclusions large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) sub-grain boundaries may be prominent olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 Hajmah, Oman medium
Fo% 85 19° 55' N., 56° 15' E. AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism diamonds and/or lonsdaleite Hutchison (1977) curved meeting in triple junctions Wo% En% 1958 greater extent of fracturing, undulatory extinction, and kink banding Wo% 9.0 En% 78

Haxtun Haxtun transparent, recrystallized, small crystals the nature and degree of thermal metamorphism or aqueous alteration providing insight into geological evolution of parent asteroid in weight % undulatory extinction, partially isotropic, planar deformation features S4 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification low 4 chondrules well defined often minerals not found on Earth secondary, grains than 2 microns 30 to 35 GPa hypersthene chondrite 15.53 kg 0.7 millimeters S4 shock stage chondrite 5 % by volume can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls weak mosaicism, planar fractures agglomeration of particles, many of which record individual, diverse histories devitrified, absent 10 to 15 % by volume weak mosaicism, twinning on (100), planar fractures the range over at which the alteration took place 21 less than 5 % mean deviations weak definition goes here in weight % less than 0.2 % by weight 21 km SSE of Haxtun, Colorado moderately shocked
50 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship 40° 27.4' N., 102° 34.7' W. 5 to 10 % before, during or after other types of metamorphism which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 1197 kg shock metamorphism orthopyroxene for enstatite chondrite August 1975 asteroid smaller than 100 km in diameter 60 to 80 % by volume less than 1.5 % by weight greater than 20 % monoclinic

Hughes 009 based on the locale, region, or nearby town in which the fall occurred S4-S6 0 % no chondrules 1 mm often minerals not found on Earth from 20 GPa to 100 GPa meteorite find may be cloudy due to glassy inclusions 0.7 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) sub-grain boundaries may be prominent olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity medium Fo% 87 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Wo% 4.9 En% 84 shock metamorphism diamonds and/or lonsdaleite Wlotzka (1994), Goodrich (1998) curved meeting in triple junctions Wo% 37 En% 56 when the meteorite was found greater extent of fracturing, undulatory extinction, and kink banding

Imilac Imilac 0.3 to 2.8 % by volume 2.5 to 4 degrees C per million years mixture of iron-nickel alloy and non-metallic minerals typically one centimeter 78 to 97 kilometers 9.9% Ni, 21.1 ppm Ga, 46.0 ppm Ge, 0.071 ppm Ir heterogeneous elements are zoned between grain rim and core 240 kg main group pallasite 1 % or less by volume always greater than 4 % from homogeneous to heterogeneous grade 2 (subject to weathering) schreibersite 33 from angular fragments to rounded higher than that of average solar system material 1 % or less by volume Atacama Desert southwest of Imilac, Chile
Fo 88+-1 35 to 85 % by volume 24° 12.2' S., 68° 48.4' W. PAL 0.1 to 7.3 % by volume which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 7207 kg 1820

Isna Isna clastic and minor opaque in weight % 13 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification elemental carbon none 3 chondrules very sharply defined often minerals not found on Earth minor primary grains only Ornans meteorite 0.15 millimeters Antarctic meteorite 1 to 5 % by volume can be severe due to long exposure time to environmental corrosion agents rare relative to other chondrite types agglomeration of particles, many of which record individual, diverse histories clear, isotropic, variable abundance 34 % by volume 1691 greater than 5 % deviations none definition goes here in weight % 0.2 to 1 % by weight Nile River near Luxor, Egypt
greater than 20 % by weight, kamacite and taenite in exsolution relationship 24° 50' N., 31° 40' E. 3.7 which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 485755 kg 1970 asteroid smaller than 100 km in diameter 48 % by volume 0.3 to 3 % by weight predominantly monoclinic

Jalanash based on the locale, region, or nearby town in which the fall occurred S4-S6 0 % no chondrules 1 mm often minerals not found on Earth from 20 GPa to 100 GPa meteorite find may be cloudy due to glassy inclusions 0.15 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) sub-grain boundaries may be prominent olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity medium Fo% 81 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism diamonds and/or lonsdaleite Weber and Bischoff (1998) curved meeting in triple junctions when the meteorite was found greater extent of fracturing, undulatory extinction, and kink banding Wo% 7.8 En% 75

Kenna Kenna S4-S6 0 % no chondrules 1 mm often minerals not found on Earth from 20 GPa to 100 GPa 10.9 kg meteorite find may be cloudy due to glassy inclusions 0.25 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) sub-grain boundaries may be prominent olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 Roosevelt County, New Mexico medium
Fo% 79 33° 54' N., 103° 33.2' W. AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism diamonds and/or lonsdaleite Berkley et. al (1980) curved meeting in triple junctions February 1972 greater extent of fracturing, undulatory extinction, and kink banding Wo% 9.8 En% 72

LEW 85328 based on the locale, region, or nearby town in which the fall occurred S2-S3 0 % no chondrules 1 mm often minerals not found on Earth less than 20 GPa meteorite find 0.33 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) fracturing, undulatory extinction and kink bands olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity low Fo% 80 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism small euhedral graphite crystals can sometimes be distinguished AMN 10-1 curved meeting in triple junctions when the meteorite was found silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine Wo% 9.0 En% 74

LEW 85440 based on the locale, region, or nearby town in which the fall occurred S2-S3 0 % no chondrules 1 mm often minerals not found on Earth less than 20 GPa small rounded olivine grains (poikilitic) meteorite find 0.43, 0.50 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) fracturing, undulatory extinction and kink bands olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity low LEW 88012 meteorite Fo% 92 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Wo% 5.0 En% 87 shock metamorphism small euhedral graphite crystals can sometimes be distinguished small rounded pyroxene grains (poikilitic) Takeda et al. (1992), Takeda (1989), Takeda et al. (1988b), AMN13-2, AMN 13-3 curved meeting in triple junctions Wo% 36 En% 59 when the meteorite was found silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine

LEW 86216 based on the locale, region, or nearby town in which the fall occurred shock melted no chondrules much less than 1 mm often minerals not found on Earth 100 GPa or greater meteorite find mottled by melt glass 0.02 in modal pyroxene/(pryroxene+olivine) mosaicized can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) completely shattered or mosaicized olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity shock melted Fo% 81 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Wo% 1.7 En% 88 shock metamorphism visible via dark matrix outlining relict grain boundaries of large, elongate grains, and a common preferred orientation of grains within relict domains -has source: Berkley JL, Taylor GJ, Keil K. Harlow GE, Prinz M 1980, Geochim Cosmochim Acta 44, 1579 -has URL: http://adsabs.harvard.edu/cgi-bin/bib_query?1980GeCoA..44.1579B diamonds and/or lonsdaleite Berkley (1990) when the meteorite was found

LEW 87165 based on the locale, region, or nearby town in which the fall occurred no chondrules often minerals not found on Earth meteorite find can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 6 (out of date) strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity Fo% 85 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 9 kg (out of date) AMN 12-1, AMN 13-1 when the meteorite was found Fs% 13 ?

LEW 88006 based on the locale, region, or nearby town in which the fall occurred S2-S3 0 % no chondrules 1 mm often minerals not found on Earth less than 20 GPa meteorite find large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) fracturing, undulatory extinction and kink bands olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity low Fo% 82 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism small euhedral graphite crystals can sometimes be distinguished AMN 13-2 curved meeting in triple junctions when the meteorite was found silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine Wo% 8.0 En% 76

LEW 88772 based on the locale, region, or nearby town in which the fall occurred 0 % no chondrules 1 mm often minerals not found on Earth meteorite find large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity Fo% 84 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg AMN 16-1 curved meeting in triple junctions when the meteorite was found Wo% 11 En% 78

LEW 88774 based on the locale, region, or nearby town in which the fall occurred S4-S6 no chondrules often minerals not found on Earth from 20 GPa to 100 GPa meteorite find may be cloudy due to glassy inclusions 0.83-0.87 in modal pyroxene/(pryroxene+olivine) bi-modal with extremely large 15mm crystals of low-Ca pyroxene poikilitically enclosing domains with ureilite texture can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) sub-grain boundaries may be prominent 6% chromite olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity medium Fo% 75 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Wo% 4.2 En% 75 shock metamorphism diamonds and/or lonsdaleite Warren and Kallemeyn (1994), Prinz et. al (1994) Wo% 33 En% 53 when the meteorite was found greater extent of fracturing, undulatory extinction, and kink banding

META 78008 based on the locale, region, or nearby town in which the fall occurred S4-S6 no chondrules often minerals not found on Earth from 20 GPa to 100 GPa meteorite find may be cloudy due to glassy inclusions 0.05, 0.37 in modal pyroxene/(pryroxene+olivine) bi-modal with extremely large 15mm crystals of low-Ca pyroxene poikilitically enclosing domains with ureilite texture can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) sub-grain boundaries may be prominent olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity medium Fo% 77 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Wo% 4.5 En% 76 shock metamorphism diamonds and/or lonsdaleite Takeda et al. (1989) Wo% 32 En% 55 when the meteorite was found greater extent of fracturing, undulatory extinction, and kink banding Wo% 16 En% 66

Monument Draw Monument Draw oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification no chondrules chondritic abundances of plagioclase and troilite; Acapulco meteorite 0.5245 kg Antarctic meteorite medium grained can be severe due to long exposure time to environmental corrosion agents olivine, orthopyroxene, clinopyroxene, metal with some troilite and some sodic plagioclase agglomeration of particles, many of which record individual, diverse histories 1691 18 miles NW of Andrews, Texas
32° 30.2' N., 102° 44.6' W. fine- to coarse-grained equigranular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity ultrametamorphism, partial melting with some melt migration 485755 kg 1985 asteroid smaller than 100 km in diameter

Moorabie Moorabie clastic and minor opaque the nature and degree of thermal metamorphism or aqueous alteration providing insight into geological evolution of parent asteroid in weight % undulatory extinction, partially isotropic, planar deformation features S4 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification none low 3 chondrules very sharply defined often minerals not found on Earth minor primary grains only 30 to 35 GPa hypersthene chondrite 14.1 kg 0.7 millimeters S4 shock stage chondrite 5 % by volume can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls weak mosaicism, planar fractures agglomeration of particles, many of which record individual, diverse histories clear, isotropic, variable abundance 10 to 15 % by volume weak mosaicism, twinning on (100), planar fractures 10 greater than 5 % deviations none definition goes here in weight % 0.2 to 1 % by weight 130 miles north of Broken Hill close to Boolka, 10 miles south of Moorabie Bore, New South Wales moderately shocked
50 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship 30° 6' S., 141° 4' E. 5 to 10 % before, during or after other types of metamorphism 3.8 which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 131 kg shock metamorphism orthopyroxene for enstatite chondrite before 1965 asteroid smaller than 100 km in diameter 60 to 80 % by volume 0.3 to 3 % by weight predominantly monoclinic

Mount Egerton Mount Egerton enstatite crystals up to 8.5 cm x 5 cm x 2.8 cm mixture of iron-nickel alloy and non-metallic minerals often minerals not found on Earth 1.7 kg meteorite find always greater than 4 % highly reduced with very little FeO extreme can be severe due to long exposure time to environmental corrosion agents enstatite, forsterite, sodic plagioclase, metal, numerous sulfides enstatite 9 higher than that of average solar system material Mount Egerton, Australia
24° 53' S., 117° 38' E. AUB breccias of igneous lithologies which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity melted and crystallized residues from partial melting 1205 kg 1941

Mulga North Mulga North transparent, recrystallized, coarse crystals providing insight into geological evolution of parent asteroid in weight % 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification high 6 chondrules poorly defined often minerals not found on Earth secondary, grains greater than 50 microns bronzite chondrite 2.42 kg 0.3 millimeters meteorite find 10 % by volume can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls agglomeration of particles, many of which record individual, diverse histories devitrified, absent 10 to 15 % by volume the range over at which the alteration took place 44 homogeneous strong definition goes here in weight % less than 0.2 % by weight Western Australia
75 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship 30° 11' S., 126° 22' E. 12 to 21 % which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 11357 kg thermal metamorphism 1964 asteroid smaller than 100 km in diameter 60 to 80 % by volume less than 1.5 % by weight orthorhombic

Nilpena Nilpena bre - chia common in clasts no chondrules typical monomict ureilite material plus a variety of other lithic clasts often minerals not found on Earth polymict ureilite can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal smaller mineral fragments, carbon, suessite (Fe3Si), sulfides, minor chromite and minor apatite 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity North Haig meteorite (possibly) Fo% 80 for monomict ureilitic clasts in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Jaques and Fitzgerald (1982) when the meteorite was found Wo% 9.0 En% 75 for monomict ureilitic clasts

North Haig North Haig bre - chia common in clasts no chondrules typical monomict ureilite material plus a variety of other lithic clasts often minerals not found on Earth polymict ureilite 0.26 in modal pyroxene/(pryroxene+olivine) can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal smaller mineral fragments, carbon, suessite (Fe3Si), sulfides, minor chromite and minor apatite 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity Nilpena meteorite (possibly) Fo% 76-92 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Berkley et. al (1980) when the meteorite was found Wo% variable En% variable

Nullabor 010 based on the locale, region, or nearby town in which the fall occurred S1 0 % no chondrules 1 mm often minerals not found on Earth less than 5 GPa meteorite find 0.33 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity unshocked Nova 001 meteorite Fo% 79 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism no diamonds or lonsdaleite Treiman and Berkley (1994) curved meeting in triple junctions Wo% En% when the meteorite was found Wo% 9.0 En% 73

Okechobee Okechobee transparent, recrystallized, small crystals providing insight into geological evolution of parent asteroid in weight % 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification low 4 chondrules well defined often minerals not found on Earth secondary, grains than 2 microns hypersthene chondrite 1 kg 0.7 millimeters meteorite find 5 % by volume can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls agglomeration of particles, many of which record individual, diverse histories devitrified, absent 10 to 15 % by volume the range over at which the alteration took place 21 less than 5 % mean deviations weak definition goes here in weight % less than 0.2 % by weight
50 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship 26° 41' N., 80° 48' W. 5 to 10 % which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 1197 kg thermal metamorphism 1916 asteroid smaller than 100 km in diameter 60 to 80 % by volume less than 1.5 % by weight greater than 20 % monoclinic

Old Homestead 001 Howardite, Eucrite, Diogenite Homestead 001 no chondrules often minerals not found on Earth 0.783 kg meteorite find can be severe due to long exposure time to environmental corrosion agents orthopyroxene, olivine, chromite; pigeonite, calcic plagioclase, silica eucrite-diogenite mixture 19 Nullarbor Plain, Western Australia
31° 10' S., 127° 45' E. AHOW coarse-grained orthopyroxenites, gabbros, fine- to coarse-grained basalts, brecciated which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity cumulates, crystallized melts, impact mixing 41 kg June 1991

PCA 82506 based on the locale, region, or nearby town in which the fall occurred S2-S3 0 % no chondrules 1 mm often minerals not found on Earth less than 20 GPa small rounded olivine grains (poikilitic) meteorite find 0.48 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) fracturing, undulatory extinction and kink bands olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity low Fo% 78 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism small euhedral graphite crystals can sometimes be distinguished small rounded pyroxene grains (poikilitic) Goodrich et al. (1987b), Berkley (1986) curved meeting in triple junctions when the meteorite was found silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine Wo% 6.0 En% 76

QUE 93336 based on the locale, region, or nearby town in which the fall occurred S4-S6 0 % no chondrules 1 mm often minerals not found on Earth from 20 GPa to 100 GPa meteorite find may be cloudy due to glassy inclusions large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) sub-grain boundaries may be prominent olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity medium QUE 93341 meteorite Fo% 77 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism diamonds and/or lonsdaleite AMN 18-1 curved meeting in triple junctions when the meteorite was found greater extent of fracturing, undulatory extinction, and kink banding Wo% 10 En% 72

Ragland Ragland clastic and minor opaque in weight % 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification none low 3 chondrules very sharply defined often minerals not found on Earth minor primary grains only amphoterite 12.1 kg 0.9 millimeters meteorite find 2 % by volume can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls agglomeration of particles, many of which record individual, diverse histories clear, isotropic, variable abundance 10 to 15 % by volume 5 greater than 5 % deviations none definition goes here in weight % 0.2 to 1 % by weight wheat field in New Mexico
20 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship 34° 46' 4" N., 103° 33' 33" W. about 2 % 3.4 which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 90 kg 1982 asteroid smaller than 100 km in diameter 60 to 80 % by volume 0.3 to 3 % by weight predominantly monoclinic

Reid 013 Reid 013 no chondrules often minerals not found on Earth Brachina meteorite 0.330 kg meteorite find can be severe due to long exposure time to environmental corrosion agents olivine, augite, Fe-sulfide, some orthopyroxene and some sodic plagioclase 1691 Nullarbor, Western Australia
30° 05' S., 128° 55' E. medium- to coarse-grained equigranular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity metamorphosed chondrite, partial melting residue 485755 kg formed by separation of molten rock in a gravity field 1991

RKPA 80239 based on the locale, region, or nearby town in which the fall occurred S2-S3 0 % no chondrules 1 mm often minerals not found on Earth less than 20 GPa small rounded olivine grains (poikilitic) meteorite find large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) fracturing, undulatory extinction and kink bands olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity low Fo% 83 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism small euhedral graphite crystals can sometimes be distinguished small rounded pyroxene grains (poikilitic) Goodrich et al. (1987b), Berkley (1986) curved meeting in triple junctions when the meteorite was found silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine Wo% 6.7 En% 78

Roosevelt County 027 based on the locale, region, or nearby town in which the fall occurred S2-S3 0 % no chondrules 1 mm often minerals not found on Earth less than 20 GPa meteorite find 0.25 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) fracturing, undulatory extinction and kink bands olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity low Fo% 79 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism small euhedral graphite crystals can sometimes be distinguished Goodrich et al. (1987a) curved meeting in triple junctions when the meteorite was found silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine Wo% 8.0 En% 75

Sahara 97021 Sahara 97021 transparent, recrystallized, moderate size crystals the nature and degree of thermal metamorphism or aqueous alteration providing insight into geological evolution of parent asteroid in weight % undulatory extinction S3 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification low 5 chondrules readily delineated often minerals not found on Earth secondary, 2 to 50 micron grains 15 to 20 GPa amphoterite 0.895 kg 0.9 millimeters S3 shock stage chondrite 2 % by volume W2 can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls planar fractures, undulatory extinction, irregular fractures agglomeration of particles, many of which record individual, diverse histories devitrified, absent 10 to 15 % by volume clinoenstatite lamellae on (100), undulatory extinction, planar fractures, irregular fractures the range over at which the alteration took place 9 homogeneous moderate definition goes here in weight % less than 0.2 % by weight Sahara Desert weakly shocked
20 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship y° 08' 52" N., x° 28' 49" W. about 2 % before, during or after other types of metamorphism which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 184 kg shock metamorphism orthopyroxene for enstatite chondrite February 1997 asteroid smaller than 100 km in diameter 60 to 80 % by volume less than 1.5 % by weight less than 20 % monoclinic

Sahara 97096 Sahara 97096 clastic and minor opaque in weight % 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification none high 3 to 5 chondrules very sharply defined often minerals not found on Earth minor primary grains only E chondrite 28 kg 0.2 millimeters meteorite find zero highly reduced with very little FeO 8 % by volume can be severe due to long exposure time to environmental corrosion agents agglomeration of particles, many of which record individual, diverse histories clear, isotropic, variable abundance less than 2 to 15 % by volume 1691 greater than 5 % deviations none definition goes here in weight % 0.2 to 1 % by weight Sahara
greater than 20 % by weight, kamacite and taenite in exsolution relationship y° 01' 43" N., x° 32' 21" W. which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 485755 kg 1997 asteroid smaller than 100 km in diameter 60 to 80 % by volume 0.3 to 3 % by weight predominantly monoclinic

Sahara 99555 Sahara 99555 no chondrules often minerals not found on Earth Angra dos Reis meteorite 2.710 kg meteorite find can be severe due to long exposure time to environmental corrosion agents Al-Ti-diopside, anorthite, calcic olivine augite 1691 Sahara Desert
ACANOM fine- to coarse-grained igneous which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity crystallized melts, cumulates (?) 485755 kg May 1999

Sahara meteorite based on the locale, region, or nearby town in which the fall occurred often minerals not found on Earth can be severe due to long exposure time to environmental corrosion agents 1691 meteorite find Sahara desert in degrees, minutes and seconds of lattitude and longitude which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 485755 kg when the meteorite was found

Seemore Downs Seemore Downs transparent, recrystallized, small crystals providing insight into geological evolution of parent asteroid in weight % 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification low 4 chondrules well defined often minerals not found on Earth secondary, grains than 2 microns amphoterite 0.429 kg 0.9 millimeters meteorite find 2 % by volume can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls agglomeration of particles, many of which record individual, diverse histories devitrified, absent 10 to 15 % by volume the range over at which the alteration took place 2 less than 5 % mean deviations weak definition goes here in weight % less than 0.2 % by weight Western Australia
20 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship 30° 35' S., 125° 13' E. about 2 % which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 124 kg thermal metamorphism April 1991 asteroid smaller than 100 km in diameter 60 to 80 % by volume less than 1.5 % by weight greater than 20 % monoclinic

Selma Selma transparent, recrystallized, small crystals providing insight into geological evolution of parent asteroid in weight % 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification high 4 chondrules well defined often minerals not found on Earth secondary, grains than 2 microns bronzite chondrite 140.7 kg 0.3 millimeters meteorite find 10 % by volume can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls agglomeration of particles, many of which record individual, diverse histories devitrified, absent 10 to 15 % by volume the range over at which the alteration took place 37 less than 5 % mean deviations weak definition goes here in weight % less than 0.2 % by weight Dallas County, Alabama, 2 miles N. of Selma near the Summerfield road
75 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship 32° 24' N., 87° 0' W. 12 to 21 % which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 1251 kg thermal metamorphism 1906 asteroid smaller than 100 km in diameter 60 to 80 % by volume less than 1.5 % by weight greater than 20 % monoclinic

Springwater 3.18 milligram/gram using Instrumental Neutron Activation Analysis 0.004 % by weight Springwater 0.33 % by weight 0.3 to 2.8 % by volume 39.0 % by weight 2.5 to 4 degrees C per million years mixture of iron-nickel alloy and non-metallic minerals typically one centimeter 78 to 97 kilometers metallic iron plus olivine; core/mantle boundary samples heterogeneous elements are zoned between grain rim and core 67.6 kg main group pallasite 1 % or less by volume always greater than 4 % from homogeneous to heterogeneous 43.9 % by weight main mass at Arizona State Univ. can be severe due to long exposure time to environmental corrosion agents 0.021 % by weight 20.4 microgram/gram using Instrumental Neutron Activation Analysis schreibersite 7.7 microgram/gram using Instrumental Neutron Activation Analysis 33 from angular fragments to rounded higher than that of average solar system material 17.2 % by weight 1 % or less by volume 100 miles west of Saskatoon, Saskatchewan, Canada 51
8.84 microgram/gram using Instrumental Neutron Activation Analysis Fo 82 35 to 85 % by volume 52° 0' N., 108° 18' W. PAL 0.1 to 7.3 % by volume
7207 kg Yanhua Zhou, Steele, I.M. 1993, Lunar Planet. Sci. 24, 1573 0.54 microgram/gram using Instrumental Neutron Activation Analysis Summer, 1931 169 microgram/gram using Instrumental Neutron Activation Analysis 82.0 mg# or 100 * Mg/(Mg + Fe)

Theil Mountains Theil Mountains 0.3 to 2.8 % by volume 2.5 to 4 degrees C per million years mixture of iron-nickel alloy and non-metallic minerals typically one centimeter 78 to 97 kilometers often minerals not found on Earth heterogeneous elements are zoned between grain rim and core 28.6 kg Antarctic meteorite 1 % or less by volume always greater than 4 % from homogeneous to heterogeneous can be severe due to long exposure time to environmental corrosion agents schreibersite 1691 from angular fragments to rounded higher than that of average solar system material 1 % or less by volume NE base of Mount Wrather, Antarctica
Fo 88+-1 35 to 85 % by volume 85° 23.9' S., 86° 35.4' W. PAL 0.1 to 7.3 % by volume which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 485755 kg December 7, 1961

Tierra Blanca Tierra Blanca oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification no chondrules IAB-silica related Winona meteorite 0.860 kg meteorite find can be severe due to long exposure time to environmental corrosion agents olivine, orthopyroxene, clinopyroxene, metal with some troilite and some sodic plagioclase agglomeration of particles, many of which record individual, diverse histories 1691 troilite, metal, daubreilite, schreibersite, graphite Tierra Blanca Creek 10 km SW of Canyon, Texas
34° 56' N., 102° 01' W. fine- to coarse-grained equigranular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity ultrametamorphism, partial melting with some melt migration 485755 kg before 1965 asteroid smaller than 100 km in diameter

Vermillion Vermillion 2.5 to 4 degrees C per million years large mm sized pyroxene crystals poikilitically containing small olivine grains 1.5 cm 78 to 97 kilometers often minerals not found on Earth 34.36 kg meteorite find 1 % or less by volume always greater than 4 % from homogeneous to heterogeneous 0.7 % by volume (orthopyroxene) can be severe due to long exposure time to environmental corrosion agents 1691 rounded to subrounded 1.5 cm higher than that of average solar system material 0.2 % by volume grain field in Marshall County, Kansas
14 % by volume 39° 44.18' N., 96° 21.68' W. PAL which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 485755 kg May, 1991

Wells Wells clastic and minor opaque in weight % 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification none low 3 chondrules very sharply defined often minerals not found on Earth minor primary grains only amphoterite 4.135 kg 0.9 millimeters meteorite find 2 % by volume can be severe due to long exposure time to environmental corrosion agents most common chondrite observed from falls agglomeration of particles, many of which record individual, diverse histories clear, isotropic, variable abundance 10 to 15 % by volume 5 greater than 5 % deviations none definition goes here in weight % 0.2 to 1 % by weight grain field in Texas
20 % of total iron greater than 20 % by weight, kamacite and taenite in exsolution relationship 33° 3' N., 101° 56' W. about 2 % 3.3 which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 90 kg 1985 asteroid smaller than 100 km in diameter 60 to 80 % by volume 0.3 to 3 % by weight predominantly monoclinic

Y-74123 based on the locale, region, or nearby town in which the fall occurred 0 % no chondrules 1 mm often minerals not found on Earth meteorite find 0 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity Fo% 79 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Takeda et al. (1979a), Takeda et al. (1979b), Takeda (1987) curved meeting in triple junctions when the meteorite was found Wo% 6.8 En% 75

Y-74130 based on the locale, region, or nearby town in which the fall occurred no chondrules often minerals not found on Earth meteorite find 0.5, 1 in modal pyroxene/(pryroxene+olivine) bi-modal with extremely large 15mm crystals of low-Ca pyroxene poikilitically enclosing domains with ureilite texture can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity Fo% 78 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Wo% 4.2 En% 78 Takeda et al. (1989), Goodrich (1986b) Wo% 32 En% 55 when the meteorite was found Wo% 14 En% 68

Y-74154 based on the locale, region, or nearby town in which the fall occurred shock melted no chondrules much less than 1 mm often minerals not found on Earth 100 GPa or greater meteorite find mottled by melt glass mosaicized can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) completely shattered or mosaicized olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity shock melted Fo% 84 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism visible via dark matrix outlining relict grain boundaries of large, elongate grains, and a common preferred orientation of grains within relict domains -has source: Berkley JL, Taylor GJ, Keil K. Harlow GE, Prinz M 1980, Geochim Cosmochim Acta 44, 1579 -has URL: http://adsabs.harvard.edu/cgi-bin/bib_query?1980GeCoA..44.1579B diamonds and/or lonsdaleite Yanai and Kojima (1995b) when the meteorite was found Wo% 8.1 En% 79 variable due to interstitial or shock melts

Y-74659 based on the locale, region, or nearby town in which the fall occurred S2-S3 0 % no chondrules 1 mm often minerals not found on Earth less than 20 GPa meteorite find 0.52 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) fracturing, undulatory extinction and kink bands olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity low Fo% 91 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Wo% 4.5 En% 88 shock metamorphism small euhedral graphite crystals can sometimes be distinguished Takeda et al. (1979a), Takeda (1987), Takeda and Yanai (1978) curved meeting in triple junctions when the meteorite was found silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine Wo% 7.3 En% 86

Y-790981 based on the locale, region, or nearby town in which the fall occurred S4-S6 0 % no chondrules 1 mm often minerals not found on Earth from 20 GPa to 100 GPa meteorite find may be cloudy due to glassy inclusions 0.11 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) sub-grain boundaries may be prominent olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity medium Fo% 78 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism diamonds and/or lonsdaleite Goodrich et al. (1987b), Berkley (1986), Takeda (1987) curved meeting in triple junctions when the meteorite was found greater extent of fracturing, undulatory extinction, and kink banding Wo% 8.9 En% 73

Y-791538 based on the locale, region, or nearby town in which the fall occurred S2-S3 0 % no chondrules 1 mm often minerals not found on Earth less than 20 GPa meteorite find 0.45 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) fracturing, undulatory extinction and kink bands olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity low Fo% 91 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Wo% 4.9 En% 88 shock metamorphism small euhedral graphite crystals can sometimes be distinguished Yanai and Kojima (1995b), Takeda et al. (1992), Takeda (1989) curved meeting in triple junctions when the meteorite was found silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine Wo% 9.0 En% 84

Y-791839 based on the locale, region, or nearby town in which the fall occurred 0 % no chondrules 1 mm often minerals not found on Earth meteorite find large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity Fo% 75 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg Yanai and Kojima (1995b) curved meeting in triple junctions when the meteorite was found Wo% variable En% variable

Y-82100 based on the locale, region, or nearby town in which the fall occurred S2-S3 0 % no chondrules 1 mm often minerals not found on Earth less than 20 GPa meteorite find 0.2 in modal pyroxene/(pryroxene+olivine) large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) fracturing, undulatory extinction and kink bands olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity low Fo% 81 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism small euhedral graphite crystals can sometimes be distinguished Yanai and Kojima (1995b) curved meeting in triple junctions when the meteorite was found silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine Wo% 8.6 En% 77

Y-8448 based on the locale, region, or nearby town in which the fall occurred S2-S3 0 % no chondrules 1 mm often minerals not found on Earth less than 20 GPa meteorite find large, anhedral olivine and pyroxene grains can be severe due to long exposure time to environmental corrosion agents olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) fracturing, undulatory extinction and kink bands olivine-pigeonite about 90% by volume reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume 1691 strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity low Fo% 78 in degrees, minutes and seconds of lattitude and longitude AURE coarse-grained granular which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity partial melting residue 485755 kg shock metamorphism small euhedral graphite crystals can sometimes be distinguished Yanai and Kojima (1995b) curved meeting in triple junctions when the meteorite was found silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine variable

Yilmia Yilmia transparent, recrystallized, coarse crystals providing insight into geological evolution of parent asteroid in weight % 0.1 to 1 % by volume which depends on degree of aqueous alteration and thermal metamorphism oldest and most primitive rock in solar system less than 950 degree Celsius during its entire history since solidification low 3 to 6 chondrules poorly defined often minerals not found on Earth secondary, grains greater than 50 microns E chondrite 24 kg 0.6 millimeters meteorite find zero highly reduced with very little FeO 15 % by volume can be severe due to long exposure time to environmental corrosion agents agglomeration of particles, many of which record individual, diverse histories devitrified, absent less than 2 to 15 % by volume the range over at which the alteration took place 1691 homogeneous strong definition goes here in weight % less than 0.2 % by weight Western Australia
greater than 20 % by weight, kamacite and taenite in exsolution relationship 31° 11' 30" S., 121° 32' E. which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 0.5 % by weight 485755 kg thermal metamorphism 1969 asteroid smaller than 100 km in diameter 60 to 80 % by volume less than 1.5 % by weight orthorhombic

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