meteorite fall Comparison Table

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meteorite fall comparison table

Subject has part mean Ni content of sulfide has part carbon has synonym has alteration temperature range has olivine shock metamorphism has part matrix has prototype is independent of has nickel content has shock pressure has olivine content has degree of aqueous alteration has matrix abundance has shock texture has letter designation has pyroxene shock metamorphism has petrologic subtype has sediment mechanism has likely origin has olivine composition has pigeonite composition has image has distinguishing feature has degree of secondary process has part feldspar has metal abundance has olivine composition uniformity has refractory inclusion abundance has relative abundance has minor mineral has oxidized iron content has chondrule mean diameter has petrology has intergranular boundary has metamorphism mechanism has fall date has original mass have composition has chromite content has chondrule glass type has age has part sulfide Ni content has part maximum bulk Ni in metal has oxidation state has troilite content has original texture has olivine crystal distribution has total iron content has number of find has volatile content has petrologic type has part water has comment has plagioclase has orthopyroxene shock metamorphism has plagioclase shock metamorphism has iron metal and iron sulfide has degree of thermal metamorphism has probability of occurence has characteristic mineral has degree of shock metamorphism has olivine grain size has schreibersite content has mass has abundance has peak temperature has property has phosphate content has shock diagnostic mineral has name be shock has fall location is an instance of has reference has pyroxene content parent body radiu has tenacity has formation cooling rate has olivine grain shape has shock stage has shape has part metal maximum bulk be an acronym for has homogeneity of olivine and low Ca pyroxene has curatorial location has gain size has composition has structural state of low Ca pyroxene has matrix composition has metal content has minerology has fall coordinate has olivine and low Ca pyroxene homogeneity has total mass of find has fall map has chondrule abundance has parent body has part chondrule has metal iron content has texture has olivine grain characteristic has petrologic type range

Abee in weight % less than 0.2 % by weight E chondrite the range over at which the alteration took place transparent, recrystallized, small crystals less than 2 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories
providing insight into geological evolution of parent asteroid secondary, grains than 2 microns 8 % by volume 0.1 to 1 % by volume zero 0.2 millimeters thermal metamorphism 11:05 pm June 9, 1952 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site devitrified, absent oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship highly reduced with very little FeO high 1691 3 to 5 less than 1.5 % by weight melt breccia weak 107 kg less than 950 degree Celsius during its entire history since solidification Abee Abee, Alberta meteorite fall in weight % definition goes here often minerals not found on Earth greater than 20 % monoclinic 54° 13' N., 113° 0' W. less than 5 % mean deviations 485755 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules well defined which depends on degree of aqueous alteration and thermal metamorphism

Allende in weight % 0.2 to 1 % by weight CV3_OxA chondrite clastic and minor opaque Allende meteorite weak 40 % by volume 3.2 agglomeration of particles, many of which record individual, diverse histories
elemental carbon minor primary grains only 0 to 5 % by volume 10 % by volume 1.0 millimeters February 8, 1969 1:05 am several tons iron rich olivine matrix, 24 % iron, rare flecks of iron-nickel clear, isotropic, variable abundance oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship 1691 3 0.3 to 3 % by weight none rare relative to other chondrite types less than 950 degree Celsius during its entire history since solidification Allende village of Pueblito de Allende, Chihuahua State, Mexico meteorite fall in weight % definition goes here often minerals not found on Earth predominantly monoclinic 26° 58' N., 105° 19' W. greater than 5 % deviations 485755 kg
45 % by volume asteroid smaller than 100 km in diameter chondrules very sharply defined which depends on degree of aqueous alteration and thermal metamorphism

Angra dos Reis Angra dos Reis meteorite ACANOM crystallized melts, cumulates (?)
no chondrules fine- to coarse-grained igneous 5:00 am January 20, 1869 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site 1691 augite 1.5 kg Angra dos Reis Rio de Janeiro, Brazil meteorite fall often minerals not found on Earth Al-Ti-diopside, anorthite, calcic olivine 22° 58' S., 44° 19' W. 485755 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity

Bilanga ADIO cumulates, crystallized melts, impact mixing
no chondrules coarse-grained orthopyroxenites, gabbros, fine- to coarse-grained basalts, brecciated 10:30 am October 27, 1999 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site 8 higher for non-spherical, flattened or angular meteoroids hyperstene 25 kg formed by separation of molten rock in a gravity field Bilanga Bilanga Yanga and Gomponsago, Burkina Faso, Africa oriented meteorite conical from preferential ablation during atmospheric passage Howardite, Eucrite, Diogenite often minerals not found on Earth orthopyroxene, olivine, chromite; pigeonite, calcic plagioclase, silica 12° 27' N., 0° 05' W. 68 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity

Bruderheim in weight % less than 0.2 % by weight hypersthene chondrite the range over at which the alteration took place transparent, recrystallized, coarse crystals 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories
providing insight into geological evolution of parent asteroid secondary, grains greater than 50 microns 5 % by volume 0.1 to 1 % by volume 0.7 millimeters thermal metamorphism March 4, 1960 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site devitrified, absent oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 155 6 less than 1.5 % by weight 50 % of total iron strong 400 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification Bruderheim Alberta, Canada meteorite fall in weight % definition goes here often minerals not found on Earth orthorhombic 53° 54' N., 112° 53' W. homogeneous 4673 kg
60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules poorly defined 5 to 10 % which depends on degree of aqueous alteration and thermal metamorphism

Dyalpur completely shattered or mosaicized 100 GPa or greater AURE mottled by melt glass partial melting residue Fo% 84 Wo% 11 En% 76 no chondrules coarse-grained granular shock metamorphism recorded by eyewitness or instruments which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site 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 1691 olivine-pigeonite about 90% by volume shock melted diamonds and/or lonsdaleite based on the locale, region, or nearby town in which the fall occurred strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity meteorite fall Berkley et. al (1980) 0.41 in modal pyroxene/(pryroxene+olivine) shock melted much less than 1 mm often minerals not found on Earth carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) in degrees, minutes and seconds of lattitude and longitude 485755 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity mosaicized reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal

Grosnaja in weight % 0.2 to 1 % by weight CV3_OxB chondrite planar fractures, undulatory extinction, irregular fractures clastic and minor opaque Bali meteorite the nature and degree of thermal metamorphism or aqueous alteration 15 to 20 GPa weak 40 % by volume 3.3 agglomeration of particles, many of which record individual, diverse histories
elemental carbon providing insight into geological evolution of parent asteroid minor primary grains only 0 to 5 % by volume 10 % by volume 1.0 millimeters shock metamorphism June 28, 1861 7:00 pm which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site clear, isotropic, variable abundance oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship 1691 3 0.3 to 3 % by weight clinoenstatite lamellae on (100), undulatory extinction, planar fractures, irregular fractures undulatory extinction none weakly shocked 3.5 kg rare relative to other chondrite types less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite Grosnaja before, during or after other types of metamorphism strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity S3 shock stage chondrite S3 in weight % definition goes here often minerals not found on Earth predominantly monoclinic 43° 40' N., 45° 23' E. greater than 5 % deviations 485755 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 45 % by volume asteroid smaller than 100 km in diameter chondrules very sharply defined which depends on degree of aqueous alteration and thermal metamorphism

Havero completely shattered or mosaicized 100 GPa or greater AURE mottled by melt glass partial melting residue Fo% 79 Wo% 2.5 En% 81 clinobronzite no chondrules coarse-grained granular curved meeting in triple junctions shock metamorphism recorded by eyewitness or instruments which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site 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 1691 0 % olivine-pigeonite about 90% by volume shock melted diamonds and/or lonsdaleite based on the locale, region, or nearby town in which the fall occurred strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity meteorite fall Berkley et. al (1980) 0.17 in modal pyroxene/(pryroxene+olivine) shock melted much less than 1 mm often minerals not found on Earth carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) in degrees, minutes and seconds of lattitude and longitude 485755 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity mosaicized reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal

Holbrook in weight % less than 0.2 % by weight hypersthene chondrite the range over at which the alteration took place transparent, recrystallized, coarse crystals 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories
providing insight into geological evolution of parent asteroid secondary, grains greater than 50 microns 5 % by volume 0.1 to 1 % by volume 0.7 millimeters thermal metamorphism 7:15 pm July 19, 1912 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site devitrified, absent oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 155 6 less than 1.5 % by weight 50 % of total iron strong 217.9 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification Holbrook Navajo County, Arizona meteorite fall in weight % definition goes here often minerals not found on Earth orthorhombic 34° 54' N., 110° 11' W. homogeneous 4673 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules poorly defined 5 to 10 % which depends on degree of aqueous alteration and thermal metamorphism

Indarch in weight % less than 0.2 % by weight E chondrite the range over at which the alteration took place planar fractures, undulatory extinction, irregular fractures transparent, recrystallized, small crystals the nature and degree of thermal metamorphism or aqueous alteration 15 to 20 GPa less than 2 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories
providing insight into geological evolution of parent asteroid secondary, grains than 2 microns 8 % by volume 0.1 to 1 % by volume zero 0.2 millimeters shock metamorphism 8:10 pm April 7, 1891 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site devitrified, absent oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship highly reduced with very little FeO high 1691 3 to 5 less than 1.5 % by weight clinoenstatite lamellae on (100), undulatory extinction, planar fractures, irregular fractures undulatory extinction weak weakly shocked 27 kg less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite Indarch before, during or after other types of metamorphism Azerbaydzhan SSR, USSR S3 shock stage chondrite S3 in weight % definition goes here often minerals not found on Earth greater than 20 % monoclinic 39° 45' N., 46° 40' E. less than 5 % mean deviations 485755 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules well defined which depends on degree of aqueous alteration and thermal metamorphism

Johnstown ADIO cumulates, crystallized melts, impact mixing
no chondrules coarse-grained orthopyroxenites, gabbros, fine- to coarse-grained basalts, brecciated 4:20 pm July 6, 1924 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site 8 hyperstene 40.3 kg formed by separation of molten rock in a gravity field Johnstown Weld County, Colorado meteorite fall Howardite, Eucrite, Diogenite often minerals not found on Earth orthopyroxene, olivine, chromite; pigeonite, calcic plagioclase, silica 40° 21' N., 104° 54' W. 68 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity

Kakangari in weight % 0.2 to 1 % by weight clastic and minor opaque Kakangari meteorite none 73 % by volume (including metal) 3.6 agglomeration of particles, many of which record individual, diverse histories
minor primary grains only 0 % by volume (included in matrix abundance) less than 0.1 % by volume 0.6 millimeters June 4, 1890 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site clear, isotropic, variable abundance oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship 1691 3 0.3 to 3 % by weight none less than 950 degree Celsius during its entire history since solidification Kakangari Kangankarai, India meteorite fall in weight % definition goes here often minerals not found on Earth predominantly monoclinic 12° 23' N., 78° 31' E. greater than 5 % deviations 485755 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 27 % by volume asteroid smaller than 100 km in diameter chondrules very sharply defined which depends on degree of aqueous alteration and thermal metamorphism

Kapoeta AHOW cumulates, crystallized melts, impact mixing
no chondrules coarse-grained orthopyroxenites, gabbros, fine- to coarse-grained basalts, brecciated 7:00 pm April 22, 1942 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site 19 eucrite-diogenite mixture 11.355 kg Kapoeta Kapoeta-Nathalani Road, Equatoria, Sudan meteorite fall Howardite, Eucrite, Diogenite often minerals not found on Earth orthopyroxene, olivine, chromite; pigeonite, calcic plagioclase, silica 31° 10' S., 127° 45' E. 41 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity

Lahrauli sub-grain boundaries may be prominent from 20 GPa to 100 GPa greater extent of fracturing, undulatory extinction, and kink banding AURE may be cloudy due to glassy inclusions partial melting residue Fo% 79 Wo% 7.7 En% 74 no chondrules coarse-grained granular curved meeting in triple junctions shock metamorphism recorded by eyewitness or instruments which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site 1691 0 % olivine-pigeonite about 90% by volume medium diamonds and/or lonsdaleite based on the locale, region, or nearby town in which the fall occurred strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity meteorite fall Malhotra (1962), Bhandari et al. (1981) S4-S6 1 mm often minerals not found on Earth carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) in degrees, minutes and seconds of lattitude and longitude 485755 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity large, anhedral olivine and pyroxene grains reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal

Lodran Lodran meteorite LOD agglomeration of particles, many of which record individual, diverse histories ultrametamorphism, partial melting with some melt migration
no chondrules fine- to coarse-grained equigranular 2:00 pm October 1, 1868 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site oldest and most primitive rock in solar system 1691 1 kg less than 950 degree Celsius during its entire history since solidification Lodran 12 miles east of Lodhran, Pakistan meteorite fall iron, pyroxene, olivine subcondritic abundances of plagioclase and troilite; olivine, orthopyroxene, clinopyroxene, metal with some troilite and some sodic plagioclase 29° 32' N., 71° 48' E. 485755 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity asteroid smaller than 100 km in diameter coarse grained

Marjalahti always greater than 4 % 35 to 85 % by volume PAL Fo 88+-1
mixture of iron-nickel alloy and non-metallic minerals heterogeneous elements are zoned between grain rim and core schreibersite 10:00 pm June 1, 1902 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site 1 % or less by volume 0.1 to 7.3 % by volume from homogeneous to heterogeneous 33 typically one centimeter 0.3 to 2.8 % by volume 45 kg 1 % or less by volume Marjalahti Lake Laatokka, Viipuri, Karelia, USSR (ASSR, Finland.) main group pallasite 78 to 97 kilometers 2.5 to 4 degrees C per million years from angular fragments to rounded metallic iron plus olivine; core/mantle boundary samples higher than that of average solar system material 61° 30' N., 30° 30' E. 7207 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity

Mayo Belwa AUB melted and crystallized residues from partial melting
no chondrules breccias of igneous lithologies August 3, 1974 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site highly reduced with very little FeO 9 enstatite 4.85 kg Mayo Belwa Adamawa district of north-eastern Nigeria meteorite fall often minerals not found on Earth enstatite, forsterite, sodic plagioclase, metal, numerous sulfides 8° 58' N., 12° 5' E. 1205 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity

Monahans (1998) in weight % less than 0.2 % by weight bronzite chondrite the range over at which the alteration took place weak mosaicism, planar fractures transparent, recrystallized, moderate size crystals the nature and degree of thermal metamorphism or aqueous alteration 30 to 35 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories
providing insight into geological evolution of parent asteroid secondary, 2 to 50 micron grains 10 % by volume 0.1 to 1 % by volume 0.3 millimeters shock metamorphism 6:47 pm March 22, 1998 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site devitrified, absent oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship high 76 5 less than 1.5 % by weight weak mosaicism, twinning on (100), planar fractures undulatory extinction, partially isotropic, planar deformation features 75 % of total iron moderate moderately shocked 2.587 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite Monahans (1998) before, during or after other types of metamorphism Allen Street, Monahans, Texas S4 shock stage chondrite S4 in weight % definition goes here often minerals not found on Earth less than 20 % monoclinic 102° 53.5' W., 31° 36.5' N. homogeneous 1267 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules readily delineated 12 to 21 % which depends on degree of aqueous alteration and thermal metamorphism

Mount Tazerzait in weight % less than 0.2 % by weight hypersthene chondrite the range over at which the alteration took place sharp optical extinction, irregular fractures transparent, recrystallized, moderate size crystals the nature and degree of thermal metamorphism or aqueous alteration less than 5 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories
providing insight into geological evolution of parent asteroid secondary, 2 to 50 micron grains 5 % by volume 0.1 to 1 % by volume 0.7 millimeters shock metamorphism August 21, 1991 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site devitrified, absent oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 44 5 less than 1.5 % by weight sharp optical extinction, irregular fractures sharp optical extinction, irregular fractures 50 % of total iron moderate unshocked 110 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite Mt. Tazerzait before, during or after other types of metamorphism Tahoua, Republic of Niger S1 shock stage chondrite S1 in weight % definition goes here often minerals not found on Earth less than 20 % monoclinic 18° 42' N., 4° 48' E. homogeneous 1256 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules readily delineated 5 to 10 % which depends on degree of aqueous alteration and thermal metamorphism

Murchison in weight % 0.8 to 2.6 % by weight sharp optical extinction, irregular fractures mostly fine, opaque Mighei meteorite the nature and degree of thermal metamorphism or aqueous alteration less than 5 GPa moderate 70 % by volume agglomeration of particles, many of which record individual, diverse histories
elemental carbon providing insight into geological evolution of parent asteroid minor primary grains only 0.1 % by volume 5 % by volume 0.3 millimeters shock metamorphism September 28, 1969 10:45 am which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site contain amino acids rare oldest and most primitive rock in solar system greater than 0.5 % by weight less than 20 % by weight; taenite minor or absent 1691 2 2 to 16 % by weight sharp optical extinction, irregular fractures sharp optical extinction, irregular fractures unshocked rare relative to other chondrite types less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite Murchison before, during or after other types of metamorphism Murchison, Victoria, Australia S1 shock stage chondrite friable S1 in weight % definition goes here often minerals not found on Earth predominantly monoclinic 36° 37' S., 145° 12' E. greater than 5 % deviations 485755 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 20 % by volume asteroid smaller than 100 km in diameter chondrules very sharply defined which depends on degree of aqueous alteration and thermal metamorphism

Ningqiang in weight % in weight % fine grained disequilibrium mixture of silicates, oxides, metal, sulfides and organic constituents in volume % 3.3 agglomeration of particles, many of which record individual, diverse histories
elemental carbon usually plagioclase tectosilicate in volume % in volume % millimeters June 25, 1983 7:00 pm which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site oldest and most primitive rock in solar system 1691 in weight % 4.61 kg rare relative to other chondrite types less than 950 degree Celsius during its entire history since solidification Ningqiang Ningqiang County, Shaanxi Province, China meteorite fall in weight % definition goes here Zijin Shan Observatory, Academia Sinica, in Nanjing, Jiangsu Province, China often minerals not found on Earth definition goes here 32° 55.5' N., 105° 54.4' E. 485755 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity in volume % asteroid smaller than 100 km in diameter small sphere of about 1 mm diameter of formerly melted minerals which depends on degree of aqueous alteration and thermal metamorphism

Novo Urei sub-grain boundaries may be prominent from 20 GPa to 100 GPa greater extent of fracturing, undulatory extinction, and kink banding AURE may be cloudy due to glassy inclusions partial melting residue Fo% 79 Wo% 10 En% 72 no chondrules coarse-grained granular curved meeting in triple junctions shock metamorphism recorded by eyewitness or instruments which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site 1691 0 % olivine-pigeonite about 90% by volume medium diamonds and/or lonsdaleite based on the locale, region, or nearby town in which the fall occurred strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity meteorite fall Berkley et. al (1980) 0.31 in modal pyroxene/(pryroxene+olivine) S4-S6 1 mm often minerals not found on Earth carbon, metal, sulfides small silicate grains along grain boundaries less than 10% by volume olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) in degrees, minutes and seconds of lattitude and longitude 485755 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity large, anhedral olivine and pyroxene grains reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal

Orgueil in weight % 3 to 5 % by weight all fine-grained, opaque Ivuna meteorite strong greater than 99 % by volume agglomeration of particles, many of which record individual, diverse histories
elemental carbon providing insight into geological evolution of parent asteroid usually plagioclase tectosilicate 0 % by volume less than 1 % by volume 8 % of meteorite falls no chondrules aqueous altermation May 14, 1864 few minutes after 8:00 pm which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site oldest and most primitive rock in solar system 36 high 1 18 to 22 % by weight 11 kg rare relative to other chondrite types less than 950 degree Celsius during its entire history since solidification Orgueil strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity CI chondrite friable in weight % definition goes here often minerals not found on Earth definition goes here 43° 53' N., 1° 23' E. 2577 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity less than 1 % by volume asteroid smaller than 100 km in diameter no chondrules which depends on degree of aqueous alteration and thermal metamorphism

Parnallee in weight % 0.2 to 1 % by weight amphoterite clastic and minor opaque none 10 to 15 % by volume 3.6 agglomeration of particles, many of which record individual, diverse histories
minor primary grains only 2 % by volume 0.1 to 1 % by volume 0.9 millimeters February 1857 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site clear, isotropic, variable abundance oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 5 3 0.3 to 3 % by weight 20 % of total iron none 77.6 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification Parnallee Perunali, Ramnad district, 52 miles SSE of Madura meteorite fall in weight % definition goes here often minerals not found on Earth predominantly monoclinic 9° 14' N., 78° 21' E. greater than 5 % deviations 90 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules very sharply defined about 2 % which depends on degree of aqueous alteration and thermal metamorphism

Peekskill in weight % less than 0.2 % by weight bronzite chondrite the range over at which the alteration took place transparent, recrystallized, coarse crystals 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories
providing insight into geological evolution of parent asteroid secondary, grains greater than 50 microns 10 % by volume 0.1 to 1 % by volume 0.3 millimeters thermal metamorphism 7:48 pm October 9, 1992 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site devitrified, absent oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship high 44 6 less than 1.5 % by weight only recovered piece collided with a car 75 % of total iron strong 12.4 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification Peekskill 207 Wells St. meteorite fall in weight % definition goes here often minerals not found on Earth orthorhombic 41° 17' N., 73° 55' W. homogeneous 11357 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules poorly defined 12 to 21 % which depends on degree of aqueous alteration and thermal metamorphism

Peña Blanca Spring AUB melted and crystallized residues from partial melting
no chondrules breccias of igneous lithologies 1:15 pm August 2, 1946 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site highly reduced with very little FeO 9 enstatite 70 kg Peña Blanca small pond on the Gage Ranch nine miles southeast of Marathon, Texas meteorite fall often minerals not found on Earth enstatite, forsterite, sodic plagioclase, metal, numerous sulfides 30° 7.5' N., 103° 7' W. 1205 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity

Pillistfer in weight % less than 0.2 % by weight E chondrite the range over at which the alteration took place undulatory extinction, irregular fractures transparent, recrystallized, coarse crystals the nature and degree of thermal metamorphism or aqueous alteration 5 to 10 GPa less than 2 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories
providing insight into geological evolution of parent asteroid secondary, grains greater than 50 microns 15 % by volume 0.1 to 1 % by volume zero 0.6 millimeters shock metamorphism 12:30 pm August 8, 1868 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site devitrified, absent oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship highly reduced with very little FeO low 1691 3 to 6 less than 1.5 % by weight undulatory extinction, irregular fractures, some planar fractures undulatory extinction, irregular fractures strong very weakly shocked 23.25 kg less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite Pillistfer before, during or after other types of metamorphism Aukoma, Kurla, Wahhe, and Sawiauk in Estonian SSR S2 shock stage chondrite S2 in weight % definition goes here often minerals not found on Earth orthorhombic 58° 40' N., 25° 44' E. homogeneous 485755 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules poorly defined which depends on degree of aqueous alteration and thermal metamorphism

Portales Valley in weight % less than 0.2 % by weight bronzite chondrite the range over at which the alteration took place sharp optical extinction, irregular fractures transparent, recrystallized, coarse crystals the nature and degree of thermal metamorphism or aqueous alteration less than 5 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories
providing insight into geological evolution of parent asteroid secondary, grains greater than 50 microns 10 % by volume 0.1 to 1 % by volume 0.3 millimeters shock metamorphism 7:32 am June 13, 1998 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site devitrified, absent oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship high 44 6 less than 1.5 % by weight sharp optical extinction, irregular fractures sharp optical extinction, irregular fractures 75 % of total iron strong unshocked 80 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite Portales Valley before, during or after other types of metamorphism eastern New Mexico S1 shock stage chondrite S1 in weight % definition goes here often minerals not found on Earth orthorhombic 34° 10.5' N., 103° 17.7' W. homogeneous 11357 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules poorly defined 12 to 21 % which depends on degree of aqueous alteration and thermal metamorphism

Renazzo in weight % 0.8 to 2.6 % by weight undulatory extinction, irregular fractures mostly fine, opaque ??? meteorite the nature and degree of thermal metamorphism or aqueous alteration 5 to 10 GPa moderate 30 to 50 % by volume agglomeration of particles, many of which record individual, diverse histories
elemental carbon providing insight into geological evolution of parent asteroid minor primary grains only 5 to 8 % by volume 0.5 % by volume 0.7 millimeters shock metamorphism January 15, 1824 8:30 pm which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site preserved oldest and most primitive rock in solar system greater than 0.5 % by weight less than 20 % by weight; taenite minor or absent 1691 2 2 to 16 % by weight undulatory extinction, irregular fractures, some planar fractures undulatory extinction, irregular fractures very weakly shocked 10 kg rare relative to other chondrite types less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite Renazzo before, during or after other types of metamorphism Renazzo, Italy S2 shock stage chondrite S2 in weight % definition goes here often minerals not found on Earth predominantly monoclinic 44° 46' N., 11° 17' E. greater than 5 % deviations 485755 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 50 to 60 % by volume asteroid smaller than 100 km in diameter chondrules very sharply defined which depends on degree of aqueous alteration and thermal metamorphism

Soko Banja in weight % less than 0.2 % by weight amphoterite the range over at which the alteration took place transparent, recrystallized, small crystals 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories
providing insight into geological evolution of parent asteroid secondary, grains than 2 microns 2 % by volume 0.1 to 1 % by volume 0.9 millimeters thermal metamorphism October 13, 1877 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site devitrified, absent oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 2 4 less than 1.5 % by weight 20 % of total iron weak 80 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification Soko Banja Serbia, Yugoslavia meteorite fall in weight % definition goes here often minerals not found on Earth greater than 20 % monoclinic 43° 40' N., 21° 52' E. less than 5 % mean deviations 124 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules well defined about 2 % which depends on degree of aqueous alteration and thermal metamorphism

Tatahouine ADIO cumulates, crystallized melts, impact mixing
no chondrules coarse-grained orthopyroxenites, gabbros, fine- to coarse-grained basalts, brecciated 1:30 am June 27, 1931 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site 8 hyperstene 13.5 kg formed by separation of molten rock in a gravity field Tatahouine Foum Tatahouine, 4 km NE of a small village in Tunisia meteorite fall Howardite, Eucrite, Diogenite often minerals not found on Earth orthopyroxene, olivine, chromite; pigeonite, calcic plagioclase, silica 32° 57' N., 10° 25' E. 68 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity

Tieschitz in weight % 0.2 to 1 % by weight hypersthene chondrite clastic and minor opaque none 10 to 15 % by volume 3.6 agglomeration of particles, many of which record individual, diverse histories
minor primary grains only 5 % by volume 0.1 to 1 % by volume 0.7 millimeters 1:45 pm July 15, 1878 which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site clear, isotropic, variable abundance oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 10 3 0.3 to 3 % by weight 50 % of total iron none 27.4 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification Tieschitz Prostejov, Jihomoravsky, Czechoslovakia meteorite fall in weight % definition goes here often minerals not found on Earth predominantly monoclinic 49° 36' N., 17° 7' E. greater than 5 % deviations 131 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules very sharply defined 5 to 10 % which depends on degree of aqueous alteration and thermal metamorphism

Vigarano in weight % 0.2 to 1 % by weight CV3_R chondrite undulatory extinction, irregular fractures clastic and minor opaque Vigarano meteorite the nature and degree of thermal metamorphism or aqueous alteration 5 to 10 GPa weak 40 % by volume 3.3 agglomeration of particles, many of which record individual, diverse histories
elemental carbon providing insight into geological evolution of parent asteroid minor primary grains only 0 to 5 % by volume 10 % by volume 1.0 millimeters shock metamorphism January 22, 1910 9:30 pm which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site clear, isotropic, variable abundance oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship 1691 3 0.3 to 3 % by weight undulatory extinction, irregular fractures, some planar fractures undulatory extinction, irregular fractures none very weakly shocked 16 kg rare relative to other chondrite types less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite Vigarano before, during or after other types of metamorphism Emilia, Italy S2 shock stage chondrite S2 in weight % definition goes here often minerals not found on Earth predominantly monoclinic 44° 51' N., 11° 24' E. greater than 5 % deviations 485755 kg which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity 45 % by volume asteroid smaller than 100 km in diameter chondrules very sharply defined which depends on degree of aqueous alteration and thermal metamorphism

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