Dar al Gani meteorite Comparison Table

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Dar al Gani meteorite comparison table

Subject has part mean Ni content of sulfide has pronunciation has solidification timescale has part carbon has alteration temperature range has synonym has olivine shock metamorphism has chodrule size has part matrix has prototype is independent of has shock pressure 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 origin 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 refractory inclusion abundance has relative abundance has solidification mechanism has oxidized iron content has chondrule mean diameter has petrology has metamorphism mechanism has weathering stage has chondrule glass type has age has number of fragment has oxidation state has part sulfide Ni content has part maximum bulk Ni in metal has original texture has total iron content has number of find has petrologic type has find date has comment has part water has plagioclase has iron metal and iron sulfide has degree of thermal metamorphism has orthopyroxene shock metamorphism has plagioclase shock metamorphism has characteristic mineral has degree of shock metamorphism has mass has abundance has peak temperature has shock diagnostic mineral has name be shock has fall location is an instance of has reference has pyroxene composition has shock stage has part metal maximum bulk has distribution ellipse be an acronym for has homogeneity of olivine and low Ca pyroxene has lithic clast composition has gain size has composition has structural state of low Ca pyroxene has matrix composition has minerology has fall coordinate has olivine and low Ca pyroxene homogeneity has total mass of find has chondrule abundance has parent body has part chondrule has metal iron content has texture has olivine grain characteristic classified by has petrologic type range

DaG 005 in weight % 0.2 to 1 % by weight undulatory extinction, irregular fractures clastic and minor opaque Ornans meteorite the nature and degree of thermal metamorphism or aqueous alteration 5 to 10 GPa none 34 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal
elemental carbon providing insight into geological evolution of parent asteroid minor primary grains only 1 to 5 % by volume 13 % by volume 8 % of meteorite falls 0.15 millimeters shock metamorphism W2 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 36 3 1995 0.3 to 3 % by weight none undulatory extinction, irregular fractures, some planar fractures undulatory extinction, irregular fractures very weakly shocked rare relative to other chondrite types less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite DaG 005 before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert S2 shock stage chondrite S2 in weight % definition goes here often minerals not found on Earth predominantly monoclinic 27° 09.39' N., 15° 57.15' E. greater than 5 % deviations 2577 kg 48 % by volume asteroid smaller than 100 km in diameter chondrules very sharply defined which depends on degree of aqueous alteration and thermal metamorphism

DaG 013 in weight % in weight % rumurutiite fine grained disequilibrium mixture of silicates, oxides, metal, sulfides and organic constituents Rumuruti meteorite 36 % by volume 3.5 agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal
usually plagioclase tectosilicate 0.1 % by volume 0 % by volume 0.4 millimeters oldest and most primitive rock in solar system highly oxidized 1691 3 to 6 1994-1995 0 % by weight (approximately) 0.205 kg less than 950 degree Celsius during its entire history since solidification DaG 013 Dar al Gani plateau, Libyan Sahara Desert Dar al Gani meteorite in weight % definition goes here enriched in ¹⁷O isotope definition goes here 27° 07.77' N., 16° 20.61' E. 485755 kg greater than 40 % by 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

DaG 055 in weight % in weight % undulatory extinction, irregular fractures fine grained disequilibrium mixture of silicates, oxides, metal, sulfides and organic constituents the nature and degree of thermal metamorphism or aqueous alteration 5 to 10 GPa in volume % 3 agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal
elemental carbon providing insight into geological evolution of parent asteroid usually plagioclase tectosilicate in volume % in volume % 8 % of meteorite falls millimeters shock metamorphism W1 oldest and most primitive rock in solar system 36 June 1995 in weight % undulatory extinction, irregular fractures, some planar fractures undulatory extinction, irregular fractures very weakly shocked 0.451 kg rare relative to other chondrite types less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite DaG 055 before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert S2 shock stage chondrite S2 in weight % definition goes here often minerals not found on Earth definition goes here 27° 16.03' N., 16° 25.22' E. 2577 kg 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

DaG 084 very slow completely shattered or mosaicized 100 GPa or greater AURE mottled by melt glass meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal partial melting residue Fo% 79 Wo% 5.0 En% 81
no chondrules cooling in deep underground chambers coarse-grained granular shock metamorphism W3 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 6 (out of date) 1995 olivine-pigeonite about 90% by volume shock melted 0.277 kg diamonds and/or lonsdaleite DaG 084 Dar al Gani plateau, Libyan Sahara Desert Dar al Gani meteorite Weber and Bischoff (1996) 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) 27° 02.44' N., 16° 24.26' E. 9 kg (out of date) 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

DaG 180 in weight % 0.2 to 1 % by weight amphoterite clastic and minor opaque none 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal minor primary grains only 2 % by volume 0.1 to 1 % by volume 0.9 millimeters 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 when the meteorite was found 0.3 to 3 % by weight 20 % of total iron none most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification based on the locale, region, or nearby town in which the fall occurred Dar al Gani plateau, Libyan Sahara Desert Dar al Gani meteorite in weight % definition goes here bronzite, olivine and minor oligoclase predominantly monoclinic in degrees, minutes and seconds of lattitude and longitude greater than 5 % deviations 90 kg 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

DaG 222 in weight % less than 0.2 % by weight the range over at which the alteration took place amphoterite planar fractures, undulatory extinction, irregular fractures transparent, recrystallized, moderate size crystals the nature and degree of thermal metamorphism or aqueous alteration 15 to 20 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal
providing insight into geological evolution of parent asteroid secondary, 2 to 50 micron grains 2 % by volume 0.1 to 1 % by volume 0.9 millimeters shock metamorphism W3 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 9 5 1996 breccia less than 1.5 % by weight 20 % of total iron moderate clinoenstatite lamellae on (100), undulatory extinction, planar fractures, irregular fractures undulatory extinction weakly shocked 0.837 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite DaG 222 before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert S3 shock stage chondrite S3 in weight % definition goes here bronzite, olivine and minor oligoclase less than 20 % monoclinic 27° 27.20' N., 16° 18.76' E. homogeneous 184 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules readily delineated about 2 % which depends on degree of aqueous alteration and thermal metamorphism

DaG 275 in weight % less than 0.2 % by weight the range over at which the alteration took place undulatory extinction, irregular fractures transparent, recrystallized, small crystals ??? meteorite the nature and degree of thermal metamorphism or aqueous alteration 5 to 10 GPa 75 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal
elemental carbon providing insight into geological evolution of parent asteroid secondary, grains than 2 microns 0.01 % by volume 4 % by volume 0.7 millimeters shock metamorphism W4 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 1691 4 1997 less than 1.5 % by weight weak undulatory extinction, irregular fractures, some planar fractures undulatory extinction, irregular fractures very weakly shocked rare relative to other chondrite types less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite DaG 275 before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert S2 shock stage chondrite S2 in weight % definition goes here often minerals not found on Earth greater than 20 % monoclinic 27° 21.74' N., 16° 05.38' E. less than 5 % mean deviations 485755 kg 15 % by volume asteroid smaller than 100 km in diameter chondrules well defined which depends on degree of aqueous alteration and thermal metamorphism

DaG 298 in weight % less than 0.2 % by weight the range over at which the alteration took place amphoterite transparent, recrystallized, small crystals 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal
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 W0 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 1997 less than 1.5 % by weight 20 % of total iron weak 2.459 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification DaG 298 Dar al Gani plateau, Libyan Sahara Desert Dar al Gani meteorite in weight % definition goes here bronzite, olivine and minor oligoclase greater than 20 % monoclinic 26° 58.20' N., 16° 42.28' E. less than 5 % mean deviations 124 kg 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

DaG 319 bre - chia very slow fracturing, undulatory extinction and kink bands less than 5 GPa silicates show minor fracturing, undulatory extinction and kink bands primarily in olivine AURE meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal partial melting residue
no chondrules cooling in deep underground chambers coarse-grained granular shock metamorphism W2 6 (out of date) 1997 common in clasts olivine-pigeonite about 90% by volume unshocked 0.740 kg small euhedral graphite crystals can sometimes be distinguished DaG 319 Dar al Gani plateau, Libyan Sahara Desert S1 shock stage meteorite S1 typical monomict ureilite material plus a variety of other lithic clasts often minerals not found on Earth smaller mineral fragments, carbon, suessite (Fe3Si), sulfides, minor chromite and minor apatite olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) 27° 01.68' N., 16° 21.52' E. 9 kg (out of date) reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal

Dag 596 in weight % less than 0.2 % by weight the range over at which the alteration took place amphoterite undulatory extinction, irregular fractures transparent, recrystallized, moderate size crystals the nature and degree of thermal metamorphism or aqueous alteration 5 to 10 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal Fa% 29.6
providing insight into geological evolution of parent asteroid secondary, 2 to 50 micron grains 2 % by volume 0.1 to 1 % by volume 0.9 millimeters thermal metamorphism W1 devitrified, absent oldest and most primitive rock in solar system 1 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 9 5 1998 less than 1.5 % by weight 20 % of total iron moderate undulatory extinction, irregular fractures, some planar fractures undulatory extinction, irregular fractures very weakly shocked 0.189 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite based on the locale, region, or nearby town in which the fall occurred before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert LL5 chondrite Fs% 22.5 S2 in weight % definition goes here bronzite, olivine and minor oligoclase less than 20 % monoclinic 27° 12.82' N. 16°16.89' E. homogeneous 184 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules readily delineated about 2 % A. Sexton, Open University, UK. Meteoritical Bulletin No 83 which depends on degree of aqueous alteration and thermal metamorphism

Dag 597 in weight % less than 0.2 % by weight the range over at which the alteration took place bronzite chondrite undulatory extinction, irregular fractures transparent, recrystallized, moderate size crystals the nature and degree of thermal metamorphism or aqueous alteration 5 to 10 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal Fa% 19.9
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 thermal metamorphism W2 devitrified, absent oldest and most primitive rock in solar system 1 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship high 76 5 1998 contains small metal flakes less than 1.5 % by weight 75 % of total iron moderate undulatory extinction, irregular fractures, some planar fractures undulatory extinction, irregular fractures very weakly shocked 0.672 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite based on the locale, region, or nearby town in which the fall occurred before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert H5 chondrite Fs% 17.4 S2 in weight % definition goes here often minerals not found on Earth less than 20 % monoclinic 26° 50.15' N. 16° 37.59' E. homogeneous 1267 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules readily delineated 12 to 21 % A. Sexton, Open University, UK. Meteoritical Bulletin No 83 which depends on degree of aqueous alteration and thermal metamorphism

DaG 599 in weight % less than 0.2 % by weight the range over at which the alteration took place amphoterite planar fractures, undulatory extinction, irregular fractures transparent, recrystallized, coarse crystals the nature and degree of thermal metamorphism or aqueous alteration 15 to 20 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal Fa% 32
providing insight into geological evolution of parent asteroid secondary, grains greater than 50 microns 2 % by volume 0.1 to 1 % by volume 0.9 millimeters thermal metamorphism W3 devitrified, absent oldest and most primitive rock in solar system 2 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 20 6 1998 very recrystalized less than 1.5 % by weight 20 % of total iron strong clinoenstatite lamellae on (100), undulatory extinction, planar fractures, irregular fractures undulatory extinction weakly shocked 0.781 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite based on the locale, region, or nearby town in which the fall occurred before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert LL6 chondrite Fs% 13.3 S3 in weight % definition goes here bronzite, olivine and minor oligoclase orthorhombic 26° 54.96' N. 16° 40.39' E. homogeneous 715 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules poorly defined about 2 % A. Sexton, I.A. Franchi, Open University, UK. Meteoritical Bulletin No 83 which depends on degree of aqueous alteration and thermal metamorphism

DaG 600 in weight % less than 0.2 % by weight the range over at which the alteration took place bronzite chondrite undulatory extinction, irregular fractures transparent, recrystallized, moderate size crystals the nature and degree of thermal metamorphism or aqueous alteration 5 to 10 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal Fa% 19.5
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 thermal metamorphism W2 devitrified, absent oldest and most primitive rock in solar system 1 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship high 76 5 1998 less than 1.5 % by weight 75 % of total iron moderate undulatory extinction, irregular fractures, some planar fractures undulatory extinction, irregular fractures very weakly shocked 1.190 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite based on the locale, region, or nearby town in which the fall occurred before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert H5 chondrite Fs% 17.3 S2 in weight % definition goes here often minerals not found on Earth less than 20 % monoclinic 26° 54.98' N. 16° 40.49' E. homogeneous 1267 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules readily delineated 12 to 21 % Open University, UK. Meteoritical Bulletin No 83 which depends on degree of aqueous alteration and thermal metamorphism

DaG 602 in weight % less than 0.2 % by weight the range over at which the alteration took place hypersthene chondrite planar fractures, undulatory extinction, irregular fractures transparent, recrystallized, coarse crystals the nature and degree of thermal metamorphism or aqueous alteration 15 to 20 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal Fa% 24.8
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 W2 devitrified, absent oldest and most primitive rock in solar system 1 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 155 6 1998 less than 1.5 % by weight 50 % of total iron strong clinoenstatite lamellae on (100), undulatory extinction, planar fractures, irregular fractures undulatory extinction weakly shocked 1.055 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite based on the locale, region, or nearby town in which the fall occurred before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert L6 chondrite Fs% 22 S3 in weight % definition goes here often minerals not found on Earth orthorhombic 26° 59.59' N. 16° 08.36' E. homogeneous 4673 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules poorly defined 5 to 10 % A. Sexton, Open University, UK. Meteoritical Bulletin No 83 which depends on degree of aqueous alteration and thermal metamorphism

DaG 604 in weight % less than 0.2 % by weight the range over at which the alteration took place bronzite chondrite planar fractures, undulatory extinction, irregular fractures transparent, recrystallized, small crystals the nature and degree of thermal metamorphism or aqueous alteration 15 to 20 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal Fa% 18.1
providing insight into geological evolution of parent asteroid secondary, grains than 2 microns 10 % by volume 0.1 to 1 % by volume 0.3 millimeters thermal metamorphism W2 devitrified, absent oldest and most primitive rock in solar system 1 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship high 37 4 1998 less than 1.5 % by weight 75 % of total iron weak clinoenstatite lamellae on (100), undulatory extinction, planar fractures, irregular fractures undulatory extinction weakly shocked 0.180 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite based on the locale, region, or nearby town in which the fall occurred before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert H4 chondrite Fs% 16.4 S3 in weight % definition goes here often minerals not found on Earth greater than 20 % monoclinic 26° 58.74' N. 16° 18.65' E. less than 5 % mean deviations 1251 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules well defined 12 to 21 % A. Sexton, Open University, UK. Meteoritical Bulletin No 83 which depends on degree of aqueous alteration and thermal metamorphism

DaG 608 in weight % less than 0.2 % by weight the range over at which the alteration took place hypersthene chondrite undulatory extinction, irregular fractures transparent, recrystallized, coarse crystals the nature and degree of thermal metamorphism or aqueous alteration 5 to 10 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal Fa% 25.1
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 W3 devitrified, absent oldest and most primitive rock in solar system 1 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 155 6 1998 shock veins less than 1.5 % by weight 50 % of total iron strong undulatory extinction, irregular fractures, some planar fractures undulatory extinction, irregular fractures very weakly shocked 1.870 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite based on the locale, region, or nearby town in which the fall occurred before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert L6 chondrite Fs% 21.5 S2 in weight % definition goes here often minerals not found on Earth orthorhombic 26° 58.22' N. 16° 21.65' E. homogeneous 4673 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules poorly defined 5 to 10 % Open University, UK. Meteoritical Bulletin No 83 which depends on degree of aqueous alteration and thermal metamorphism

DaG 609 very rapid 15 to 20 GPa AUEC 4 Vesta cumulates, crystallized melts, impact mixing
no chondrules extrusion onto the surface of the planet or asteroid via a volcanic eruption coarse-grained orthopyroxenites, gabbros, fine- to coarse-grained basalts, brecciated shock metamorphism W2 2 23 1998 iron-rich, monomict, with chromite grains anorthite-pigeonite Ca-rich weakly shocked 0.696 kg based on the locale, region, or nearby town in which the fall occurred Dar al Gani plateau, Libyan Sahara Desert eucrite Fs% 27-63 S3 Howardite, Eucrite, Diogenite often minerals not found on Earth orthopyroxene, olivine, chromite; pigeonite, calcic plagioclase, silica 26° 53.13' N. 16° 34.81' E. 231 kg A. Sexton, Open University, UK. A. Sexton, Meteoritical Bulletin No 83

DaG 632 in weight % 0.2 to 1 % by weight amphoterite weak mosaicism, planar fractures clastic and minor opaque the nature and degree of thermal metamorphism or aqueous alteration 30 to 35 GPa none 10 to 15 % by volume 3.2 - 3.4 agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal Fa% 4.7 - 35.9
providing insight into geological evolution of parent asteroid minor primary grains only 2 % by volume 0.1 to 1 % by volume 0.9 millimeters shock metamorphism W2 clear, isotropic, variable abundance oldest and most primitive rock in solar system 1 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 5 3 1998 0.3 to 3 % by weight 20 % of total iron none weak mosaicism, twinning on (100), planar fractures undulatory extinction, partially isotropic, planar deformation features moderately shocked 0.340 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite based on the locale, region, or nearby town in which the fall occurred before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert S4 shock stage chondrite Fs% 17.7 S4 in weight % definition goes here bronzite, olivine and minor oligoclase predominantly monoclinic 26° 54.46' N. 16° 42.10' E. greater than 5 % deviations 90 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules very sharply defined about 2 % A. Sexton, Open University, UK. Meteoritical Bulletin No 84 which depends on degree of aqueous alteration and thermal metamorphism

Dag 633 in weight % less than 0.2 % by weight the range over at which the alteration took place amphoterite undulatory extinction, irregular fractures transparent, recrystallized, moderate size crystals the nature and degree of thermal metamorphism or aqueous alteration 5 to 10 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal Fa% 27.1
providing insight into geological evolution of parent asteroid secondary, 2 to 50 micron grains 2 % by volume 0.1 to 1 % by volume 0.9 millimeters thermal metamorphism W2 devitrified, absent oldest and most primitive rock in solar system 1 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 9 5 1998 contains angular fragments less than 1.5 % by weight 20 % of total iron moderate undulatory extinction, irregular fractures, some planar fractures undulatory extinction, irregular fractures very weakly shocked 0.210 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite based on the locale, region, or nearby town in which the fall occurred before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert LL5 chondrite Fs% 23.4 S2 in weight % definition goes here bronzite, olivine and minor oligoclase less than 20 % monoclinic 26° 55.14' N. 16° 40.65' E. homogeneous 184 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules readily delineated about 2 % A. Sexton, Open University, UK. Meteoritical Bulletin No 84 which depends on degree of aqueous alteration and thermal metamorphism

Dag 635 in weight % less than 0.2 % by weight the range over at which the alteration took place bronzite chondrite planar fractures, undulatory extinction, irregular fractures transparent, recrystallized, moderate size crystals the nature and degree of thermal metamorphism or aqueous alteration 15 to 20 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal Fa% 19.8
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 thermal metamorphism W2 devitrified, absent oldest and most primitive rock in solar system 1 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship high 76 5 1998 less than 1.5 % by weight 75 % of total iron moderate clinoenstatite lamellae on (100), undulatory extinction, planar fractures, irregular fractures undulatory extinction weakly shocked 1.390 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite based on the locale, region, or nearby town in which the fall occurred before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert H5 chondrite Fs% 17.7 S3 in weight % definition goes here often minerals not found on Earth less than 20 % monoclinic 26° 54.29' N. 16° 40.74' E. homogeneous 1267 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules readily delineated 12 to 21 % A. Sexton, Open University, UK. Meteoritical Bulletin No 84 which depends on degree of aqueous alteration and thermal metamorphism

DaG 636 in weight % less than 0.2 % by weight the range over at which the alteration took place hypersthene chondrite planar fractures, undulatory extinction, irregular fractures transparent, recrystallized, moderate size crystals the nature and degree of thermal metamorphism or aqueous alteration 15 to 20 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal Fa% 25.3
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 thermal metamorphism W2 devitrified, absent oldest and most primitive rock in solar system 3 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 44 5 1998 contains metal flakes less than 1.5 % by weight 50 % of total iron moderate clinoenstatite lamellae on (100), undulatory extinction, planar fractures, irregular fractures undulatory extinction weakly shocked 2.975 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite based on the locale, region, or nearby town in which the fall occurred before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert L5 chondrite Fs% 21.2 S3 in weight % definition goes here often minerals not found on Earth less than 20 % monoclinic 26° 52.86' N. 16° 32.95' E. homogeneous 1256 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules readily delineated 5 to 10 % A. Sexton, Open University, UK. Meteoritical Bulletin No 84 which depends on degree of aqueous alteration and thermal metamorphism

DaG 638 in weight % less than 0.2 % by weight the range over at which the alteration took place bronzite chondrite transparent, recrystallized, small crystals 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal Fa% 18.6
providing insight into geological evolution of parent asteroid secondary, grains than 2 microns 10 % by volume 0.1 to 1 % by volume 0.3 millimeters thermal metamorphism W2 devitrified, absent oldest and most primitive rock in solar system 1 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship high 37 4 1998 less than 1.5 % by weight 75 % of total iron weak 8.170 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification based on the locale, region, or nearby town in which the fall occurred Dar al Gani plateau, Libyan Sahara Desert H4 chondrite Fs% 16.6 Wo%2.4 in weight % definition goes here often minerals not found on Earth greater than 20 % monoclinic 26° 57' N. 16° 9' E. less than 5 % mean deviations 1251 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules well defined 12 to 21 % A. Sexton, Open University, UK. Meteoritical Bulletin No 84 which depends on degree of aqueous alteration and thermal metamorphism

DaG 639 in weight % less than 0.2 % by weight the range over at which the alteration took place amphoterite planar fractures, undulatory extinction, irregular fractures transparent, recrystallized, moderate size crystals the nature and degree of thermal metamorphism or aqueous alteration 15 to 20 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal Fa% 26.8
providing insight into geological evolution of parent asteroid secondary, 2 to 50 micron grains 2 % by volume 0.1 to 1 % by volume 0.9 millimeters thermal metamorphism W2 devitrified, absent oldest and most primitive rock in solar system 1 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 9 5 1998 less than 1.5 % by weight 20 % of total iron moderate clinoenstatite lamellae on (100), undulatory extinction, planar fractures, irregular fractures undulatory extinction weakly shocked 0.237 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite based on the locale, region, or nearby town in which the fall occurred before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert LL5 chondrite Fs% 22.1 S3 in weight % definition goes here bronzite, olivine and minor oligoclase less than 20 % monoclinic 26° 56.41' N. 16° 25.14' E. homogeneous 184 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules readily delineated about 2 % A. Sexton, Open University, UK. Meteoritical Bulletin No 84 which depends on degree of aqueous alteration and thermal metamorphism

DaG 642 in weight % less than 0.2 % by weight the range over at which the alteration took place hypersthene chondrite planar fractures, undulatory extinction, irregular fractures transparent, recrystallized, coarse crystals the nature and degree of thermal metamorphism or aqueous alteration 15 to 20 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal Fa% 24.9
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 W1 devitrified, absent oldest and most primitive rock in solar system 1 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 155 6 1998 light green matrix, metal flakes in matrix less than 1.5 % by weight 50 % of total iron strong clinoenstatite lamellae on (100), undulatory extinction, planar fractures, irregular fractures undulatory extinction weakly shocked 0.265 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite based on the locale, region, or nearby town in which the fall occurred before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert L6 chondrite Fs% 20.5 S3 in weight % definition goes here often minerals not found on Earth orthorhombic 26° 53.12' N. 16° 34.74' E. homogeneous 4673 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules poorly defined 5 to 10 % A. Sexton, Open University, UK. Meteoritical Bulletin No 84 which depends on degree of aqueous alteration and thermal metamorphism

DaG 734 in weight % less than 0.2 % by weight the range over at which the alteration took place E chondrite undulatory extinction, irregular fractures 0.45 mm transparent, recrystallized, small 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 meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal
providing insight into geological evolution of parent asteroid secondary, grains than 2 microns 15 % by volume 0.1 to 1 % by volume zero 0.6 millimeters shock metamorphism W4 devitrified, absent oldest and most primitive rock in solar system highly reduced with very little FeO less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship low 5 3 to 6 Winter 1996/97 less than 1.5 % by weight weak undulatory extinction, irregular fractures, some planar fractures undulatory extinction, irregular fractures very weakly shocked 1.378 kg less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite DaG 734 before, during or after other types of metamorphism Dar al Gani plateau, Libyan Sahara Desert S2 shock stage chondrite S2 in weight % definition goes here often minerals not found on Earth greater than 20 % monoclinic 27° 7.91' N., 16° 3' E. less than 5 % mean deviations 143 kg 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

Lahmada 011 in weight % less than 0.2 % by weight the range over at which the alteration took place bronzite chondrite undulatory extinction, irregular fractures transparent, recrystallized, moderate size crystals the nature and degree of thermal metamorphism or aqueous alteration 5 to 10 GPa 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal Fa% 19.3
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 thermal metamorphism W1 devitrified, absent oldest and most primitive rock in solar system 1 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship high 76 5 1999 less than 1.5 % by weight 75 % of total iron moderate undulatory extinction, irregular fractures, some planar fractures undulatory extinction, irregular fractures very weakly shocked 1.520 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite based on the locale, region, or nearby town in which the fall occurred before, during or after other types of metamorphism Lahmada, western Sahara H5 chondrite Fs% 16.9 S2 in weight % definition goes here often minerals not found on Earth less than 20 % monoclinic 27° 13.82' N. 9°45.03' E. homogeneous 1267 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules readily delineated 12 to 21 % Open University, UK. Meteoritical Bulletin No 84 which depends on degree of aqueous alteration and thermal metamorphism

UK 43 in weight % 0.2 to 1 % by weight clastic and minor opaque Ornans meteorite none 34 % by volume agglomeration of particles, many of which record individual, diverse histories meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal
elemental carbon minor primary grains only 1 to 5 % by volume 13 % by volume 8 % of meteorite falls 0.15 millimeters clear, isotropic, variable abundance oldest and most primitive rock in solar system 2000 or more less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship 36 3 1999 0.3 to 3 % by weight none 177 kg rare relative to other chondrite types less than 950 degree Celsius during its entire history since solidification based on the locale, region, or nearby town in which the fall occurred Dar al Gani plateau, Libyan Sahara Desert CO chondrite in weight %
definition goes here often minerals not found on Earth predominantly monoclinic in degrees, minutes and seconds of lattitude and longitude greater than 5 % deviations 2577 kg 48 % by volume asteroid smaller than 100 km in diameter chondrules very sharply defined Open University, UK. Meteoritical Bulletin No 84 which depends on degree of aqueous alteration and thermal metamorphism

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