Antarctic meteorite Comparison Table

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Antarctic meteorite comparison table

Subject has part mean Ni content of sulfide has pronunciation has solidification timescale has part carbon has synonym has MnO content has part matrix has Al2O3 content has prototype has TiO2 content has nickel content has olivine content has degree of aqueous alteration has matrix abundance has letter designation has CaO content has petrologic subtype has sediment mechanism has olivine magnesium content has likely origin has olivine composition has pigeonite composition has image has weather has distinguishing feature has part feldspar has metal abundance has olivine SiO2 content has olivine composition uniformity has refractory inclusion abundance has minor mineral has MgO content has solidification mechanism has oxidized iron content has chondrule mean diameter has petrology has Cr2O3 content has chromite content has age has oxidation state has part sulfide Ni content has part maximum bulk Ni in metal has troilite content has olivine MnO content has olivine crystal distribution has FeO content has petrologic type has find date has part water has K2O content has plagioclase has degree of thermal metamorphism has characteristic mineral has identification date has schreibersite content has olivine grain size has mass has abundance has peak temperature has augite composition has olivine CaO content has property has sulfur content has phosphate content has name has fall location has reference has pyroxene content parent body radiu has formation cooling rate has olivine grain shape has augite grain size has part metal maximum bulk be an acronym for has homogeneity of olivine and low Ca pyroxene has olivine MgO content has Na2O content has lithic clast composition has curatorial location has SiO2 content has composition has olivine Fe/Mn ratio has P2O5 content has structural state of low Ca pyroxene has matrix composition has value has metal content has fall coordinate has minerology has olivine and low Ca pyroxene homogeneity has chondrule abundance has parent body has part chondrule has texture has olivine Cr2O3 content has olivine grain characteristic has petrologic type range has olivine FeO content have

ALH 84001 very slow 0.45 % by mass 1.23 % by mass 0.20 % by mass 1.78 % by mass no chondrules 24.6 % by mass cooling in deep underground chambers 1.22 % by mass 17.4 % by mass 1994 0.02 % by mass 1993 1.90 kg formed by separation of molten rock in a gravity field 0.01 % by mass ALH 84001 Allan Hills, Antarctica 0.14 % by mass MWG (JSC), SI 52.8 % by mass often minerals not found on Earth 0.01 % by mass in degrees, minutes and seconds of lattitude and longitude prototype ALH 84001 meteorite

ALH 84025 very slow Brachina meteorite metamorphosed chondrite, partial melting residue no chondrules cooling in deep underground chambers medium- to coarse-grained equigranular 1984 up to 1.8 millimeters formed by separation of molten rock in a gravity field ALH 84025 indicated by letters in the beginning of name up to 2.7 millimeters often minerals not found on Earth in degrees, minutes and seconds of lattitude and longitude olivine, augite, Fe-sulfide, some orthopyroxene and some sodic plagioclase

ALHA 77005 very slow 0.46 % by mass 2.83 % by mass 0.41 % by mass AEUC 3.46 % by mass no chondrules 27.7 % by mass cooling in deep underground chambers 1.00 % by mass 20.1 % by mass 1977 0.03 % by mass 1978 0.48 kg 0.05 % by mass ALHA 77005 Allan Hills, Antarctica Shergottite, Nakhilite, Chassignite 0.47 % by mass MWG (JSC), NIPR (Tokyo) 43.2 % by mass often minerals not found on Earth 0.37 % by mass in degrees, minutes and seconds of lattitude and longitude

EET 83309 bre - chia very slow AURE partial melting residue Fo% 80-84 for monomict ureilitic clasts Wo% variable En% variable for monomict ureilitic clasts can be severe due to long exposure time to environmental corrosion agents no chondrules cooling in deep underground chambers coarse-grained granular 1983 common in clasts olivine-pigeonite about 90% by volume EET 83309 Elephant Moraine, Antarctica Prinz et al. (1987) 0.27 in modal pyroxene/(pryroxene+olivine) for monomict ureilitic clasts 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 lower because the fall was not witnessed in degrees, minutes and seconds of lattitude and longitude olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal

EET 87720 bre - chia very slow AURE partial melting residue Fo% 79-87 Wo% 8.0 En% 83 can be severe due to long exposure time to environmental corrosion agents no chondrules cooling in deep underground chambers coarse-grained granular 1987 common in clasts olivine-pigeonite about 90% by volume Wo% 35 En% 52 EET 87720 Elephant Moraine, Antarctica Warren and Kallemeyn (1991), AMN 12-3, AMN 13-1 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 lower because the fall was not witnessed in degrees, minutes and seconds of lattitude and longitude olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite) reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal

EETA 79001 very rapid 0.48 % by mass 5.69 % by mass 0.63 % by mass AEUC 7.22 % by mass no chondrules 16.4 % by mass extrusion onto the surface of the planet or asteroid via a volcanic eruption 0.61 % by mass 18.6 % by mass 1979 0.04 % by mass 1980 7.90 kg formed by separation of molten rock in a gravity field 0.20 % by mass EETA 79001 Elephant Moraine, Antarctica Shergottite, Nakhilite, Chassignite 0.84 % by mass MWG (JSC), SI 48.5 % by mass often minerals not found on Earth 0.60 % by mass in degrees, minutes and seconds of lattitude and longitude

Isna in weight % 0.2 to 1 % by weight clastic and minor opaque Ornans meteorite none 34 % by volume 3.7 agglomeration of particles, many of which record individual, diverse histories
can be severe due to long exposure time to environmental corrosion agents elemental carbon minor primary grains only 1 to 5 % by volume 13 % by volume 0.15 millimeters 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 3 1970 0.3 to 3 % by weight none rare relative to other chondrite types less than 950 degree Celsius during its entire history since solidification Isna Nile River near Luxor, Egypt in weight % definition goes here often minerals not found on Earth predominantly monoclinic lower because the fall was not witnessed 24� 50' N., 31� 40' E. greater than 5 % deviations 48 % by volume asteroid smaller than 100 km in diameter chondrules very sharply defined which depends on degree of aqueous alteration and thermal metamorphism

LEW 85332 in weight % in weight % fine grained disequilibrium mixture of silicates, oxides, metal, sulfides and organic constituents in volume % agglomeration of particles, many of which record individual, diverse histories elemental carbon usually plagioclase tectosilicate in volume % in volume % millimeters oldest and most primitive rock in solar system 1985 in weight % rare relative to other chondrite types less than 950 degree Celsius during its entire history since solidification LEW 85332 indicated by letters in the beginning of name in weight % definition goes here often minerals not found on Earth definition goes here in degrees, minutes and seconds of lattitude and longitude 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

LEW 88516 very slow 0.47 % by mass 2.38 % by mass 0.35 % by mass AEUC 4.41 % by mass no chondrules 24.7 % by mass cooling in deep underground chambers 0.91 % by mass 19.3 % by mass 1988 0.03 % by mass 1991 0.013 kg 0.10 % by mass LEW 88516 Lewis Cliffs, Antarctica Shergottite, Nakhilite, Chassignite 0.47 % by mass MWG (JSC) 48.2 % by mass often minerals not found on Earth 0.39 % by mass in degrees, minutes and seconds of lattitude and longitude

LEW 97223 in weight % in weight % E chondrite fine grained disequilibrium mixture of silicates, oxides, metal, sulfides and organic constituents in volume % agglomeration of particles, many of which record individual, diverse histories usually plagioclase tectosilicate in volume % in volume % zero millimeters oldest and most primitive rock in solar system highly reduced with very little FeO 1997 0 % by weight (approximately) less than 950 degree Celsius during its entire history since solidification LEW 97223 Lewis Cliffs, Antarctica in weight % definition goes here often minerals not found on Earth definition goes here in degrees, minutes and seconds of lattitude and longitude 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

Monument Draw Acapulco meteorite agglomeration of particles, many of which record individual, diverse histories ultrametamorphism, partial melting with some melt migration
can be severe due to long exposure time to environmental corrosion agents no chondrules fine- to coarse-grained equigranular oldest and most primitive rock in solar system 1985 0.5245 kg less than 950 degree Celsius during its entire history since solidification Monument Draw 18 miles NW of Andrews, Texas chondritic abundances of plagioclase and troilite; lower because the fall was not witnessed 32� 30.2' N., 102� 44.6' W. olivine, orthopyroxene, clinopyroxene, metal with some troilite and some sodic plagioclase asteroid smaller than 100 km in diameter medium grained

QUE 94201 very rapid 0.49 % by mass 9.93 % by mass 1.87 % by mass AEUC 11.1 % by mass no chondrules 6.25 % by mass extrusion onto the surface of the planet or asteroid via a volcanic eruption 0.15 % by mass 19.4 % by mass 1994 0.04 % by mass 1995 0.012 kg formed by separation of molten rock in a gravity field QUE 94201 Queen Alexandra Range, Antarctica Shergottite, Nakhilite, Chassignite 1.44 % by mass MWG (JSC) 46.5 % by mass often minerals not found on Earth 2.04 % by mass in degrees, minutes and seconds of lattitude and longitude

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

Y 793605 very slow AEUC no chondrules cooling in deep underground chambers 1979 1995 0.018 kg Y 793605 Yamato, Antarctica Shergottite, Nakhilite, Chassignite NIPR (Tokyo) often minerals not found on Earth in degrees, minutes and seconds of lattitude and longitude

Y-8451 always greater than 4 % 55 to 63 % by volume PAL 89.6 mg# or 100 * Mg/(Mg + Fe) large mm sized pyroxene crystals poikilitically containing small olivine grains 40.2 % by weight 1 % or less by volume 1 % by volume 0.37 % by weight from homogeneous to heterogeneous recovery year is first 2 numbers in name typically one centimeter 0.05 % by weight 1 % or less by volume 3 or 4 letter contracted from find location then last two digits of year then id number indicated by letters in the beginning of name 1 to 3 % by volume 78 to 97 kilometers 2.5 to 4 degrees C per million years from angular fragments to rounded 49.1 % by weight often minerals not found on Earth 27 30 to 43 % by volume in degrees, minutes and seconds of lattitude and longitude 0.08 % by weight 10.2 % by weight

Next meteorite: differentiated meteorite Up: meteorite Previous meteorite: achondrite

Subject	has part mean Ni content of sulfide	has pronunciation	has solidification timescale	has part carbon	has synonym	has MnO content	has part matrix	has Al2O3 content	has prototype	has TiO2 content	has nickel content	has olivine content	has degree of aqueous alteration	has matrix abundance	has letter designation	has CaO content	has petrologic subtype	has sediment mechanism	has olivine magnesium content	has likely origin	has olivine composition	has pigeonite composition	has image	has weather	has distinguishing feature	has part feldspar	has metal abundance	has olivine SiO2 content	has olivine composition uniformity	has refractory inclusion abundance	has minor mineral	has MgO content	has solidification mechanism	has oxidized iron content	has chondrule mean diameter	has petrology	has Cr2O3 content	has chromite content	has age	has oxidation state	has part sulfide Ni content	has part maximum bulk Ni in metal	has troilite content	has olivine MnO content	has olivine crystal distribution	has FeO content	has petrologic type	has find date	has part water	has K2O content	has plagioclase	has degree of thermal metamorphism	has characteristic mineral	has identification date	has schreibersite content	has olivine grain size	has mass	has abundance	has peak temperature	has augite composition	has olivine CaO content	has property	has sulfur content	has phosphate content	has name	has fall location	has reference	has pyroxene content	parent body radiu	has formation cooling rate	has olivine grain shape	has augite grain size	has part metal maximum bulk	be an acronym for	has homogeneity of olivine and low Ca pyroxene	has olivine MgO content	has Na2O content	has lithic clast composition	has curatorial location	has SiO2 content	has composition	has olivine Fe/Mn ratio	has P2O5 content	has structural state of low Ca pyroxene	has matrix composition	has value	has metal content	has fall coordinate	has minerology	has olivine and low Ca pyroxene homogeneity	has chondrule abundance	has parent body	has part chondrule	has texture	has olivine Cr2O3 content	has olivine grain characteristic	has petrologic type range	has olivine FeO content	have
ALH 84001			very slow			0.45 % by mass		1.23 % by mass		0.20 % by mass						1.78 % by mass									no chondrules							24.6 % by mass	cooling in deep underground chambers				1.22 % by mass									17.4 % by mass		1994		0.02 % by mass				1993			1.90 kg					formed by separation of molten rock in a gravity field	0.01 % by mass		ALH 84001	Allan Hills, Antarctica											0.14 % by mass		MWG (JSC), SI	52.8 % by mass	often minerals not found on Earth		0.01 % by mass					in degrees, minutes and seconds of lattitude and longitude											prototype ALH 84001 meteorite
ALH 84025			very slow						Brachina meteorite											metamorphosed chondrite, partial melting residue					no chondrules								cooling in deep underground chambers			medium- to coarse-grained equigranular												1984								up to 1.8 millimeters						formed by separation of molten rock in a gravity field			ALH 84025	indicated by letters in the beginning of name						up to 2.7 millimeters									often minerals not found on Earth							in degrees, minutes and seconds of lattitude and longitude	olivine, augite, Fe-sulfide, some orthopyroxene and some sodic plagioclase
ALHA 77005			very slow			0.46 % by mass		2.83 % by mass		0.41 % by mass					AEUC	3.46 % by mass									no chondrules							27.7 % by mass	cooling in deep underground chambers				1.00 % by mass									20.1 % by mass		1977		0.03 % by mass				1978			0.48 kg						0.05 % by mass		ALHA 77005	Allan Hills, Antarctica								Shergottite, Nakhilite, Chassignite			0.47 % by mass		MWG (JSC), NIPR (Tokyo)	43.2 % by mass	often minerals not found on Earth		0.37 % by mass					in degrees, minutes and seconds of lattitude and longitude
EET 83309		bre - chia	very slow												AURE					partial melting residue	Fo% 80-84 for monomict ureilitic clasts	Wo% variable En% variable for monomict ureilitic clasts		can be severe due to long exposure time to environmental corrosion agents	no chondrules								cooling in deep underground chambers			coarse-grained granular												1983			common in clasts		olivine-pigeonite about 90% by volume												EET 83309	Elephant Moraine, Antarctica	Prinz et al. (1987)	0.27 in modal pyroxene/(pryroxene+olivine) for monomict ureilitic clasts										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	lower because the fall was not witnessed		in degrees, minutes and seconds of lattitude and longitude	olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite)							reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal
EET 87720		bre - chia	very slow												AURE					partial melting residue	Fo% 79-87	Wo% 8.0 En% 83		can be severe due to long exposure time to environmental corrosion agents	no chondrules								cooling in deep underground chambers			coarse-grained granular												1987			common in clasts		olivine-pigeonite about 90% by volume							Wo% 35 En% 52					EET 87720	Elephant Moraine, Antarctica	Warren and Kallemeyn (1991), AMN 12-3, AMN 13-1											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	lower because the fall was not witnessed		in degrees, minutes and seconds of lattitude and longitude	olivine, pyroxene (some combination of pigeonite, orthopyroxene, augite)							reduced rims contacting carbonaceous matrix material 0.1 mm FeO-free olivine and/or enstatite rims riddled with tiny inclusions of low-Ni metal
EETA 79001			very rapid			0.48 % by mass		5.69 % by mass		0.63 % by mass					AEUC	7.22 % by mass									no chondrules							16.4 % by mass	extrusion onto the surface of the planet or asteroid via a volcanic eruption				0.61 % by mass									18.6 % by mass		1979		0.04 % by mass				1980			7.90 kg					formed by separation of molten rock in a gravity field	0.20 % by mass		EETA 79001	Elephant Moraine, Antarctica								Shergottite, Nakhilite, Chassignite			0.84 % by mass		MWG (JSC), SI	48.5 % by mass	often minerals not found on Earth		0.60 % by mass					in degrees, minutes and seconds of lattitude and longitude
Isna	in weight %			0.2 to 1 % by weight			clastic and minor opaque		Ornans meteorite				none	34 % by volume			3.7	agglomeration of particles, many of which record individual, diverse histories						can be severe due to long exposure time to environmental corrosion agents	elemental carbon	minor primary grains only	1 to 5 % by volume			13 % by volume					0.15 millimeters				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					3	1970	0.3 to 3 % by weight			none						rare relative to other chondrite types	less than 950 degree Celsius during its entire history since solidification						Isna	Nile River near Luxor, Egypt							in weight %		definition goes here						often minerals not found on Earth			predominantly monoclinic		lower because the fall was not witnessed		24� 50' N., 31� 40' E.		greater than 5 % deviations	48 % by volume	asteroid smaller than 100 km in diameter	chondrules very sharply defined				which depends on degree of aqueous alteration and thermal metamorphism
LEW 85332	in weight %			in weight %			fine grained disequilibrium mixture of silicates, oxides, metal, sulfides and organic constituents							in volume %				agglomeration of particles, many of which record individual, diverse histories							elemental carbon	usually plagioclase tectosilicate	in volume %			in volume %					millimeters				oldest and most primitive rock in solar system									1985	in weight %									rare relative to other chondrite types	less than 950 degree Celsius during its entire history since solidification						LEW 85332	indicated by letters in the beginning of name							in weight %		definition goes here						often minerals not found on Earth			definition goes here				in degrees, minutes and seconds of lattitude and longitude			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
LEW 88516			very slow			0.47 % by mass		2.38 % by mass		0.35 % by mass					AEUC	4.41 % by mass									no chondrules							24.7 % by mass	cooling in deep underground chambers				0.91 % by mass									19.3 % by mass		1988		0.03 % by mass				1991			0.013 kg						0.10 % by mass		LEW 88516	Lewis Cliffs, Antarctica								Shergottite, Nakhilite, Chassignite			0.47 % by mass		MWG (JSC)	48.2 % by mass	often minerals not found on Earth		0.39 % by mass					in degrees, minutes and seconds of lattitude and longitude
LEW 97223	in weight %			in weight %	E chondrite		fine grained disequilibrium mixture of silicates, oxides, metal, sulfides and organic constituents							in volume %				agglomeration of particles, many of which record individual, diverse histories								usually plagioclase tectosilicate	in volume %			in volume %				zero	millimeters				oldest and most primitive rock in solar system	highly reduced with very little FeO								1997	0 % by weight (approximately)										less than 950 degree Celsius during its entire history since solidification						LEW 97223	Lewis Cliffs, Antarctica							in weight %		definition goes here						often minerals not found on Earth			definition goes here				in degrees, minutes and seconds of lattitude and longitude			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
Monument Draw									Acapulco meteorite									agglomeration of particles, many of which record individual, diverse histories		ultrametamorphism, partial melting with some melt migration				can be severe due to long exposure time to environmental corrosion agents	no chondrules											fine- to coarse-grained equigranular			oldest and most primitive rock in solar system									1985									0.5245 kg		less than 950 degree Celsius during its entire history since solidification						Monument Draw	18 miles NW of Andrews, Texas															chondritic abundances of plagioclase and troilite;					lower because the fall was not witnessed		32� 30.2' N., 102� 44.6' W.	olivine, orthopyroxene, clinopyroxene, metal with some troilite and some sodic plagioclase			asteroid smaller than 100 km in diameter		medium grained
QUE 94201			very rapid			0.49 % by mass		9.93 % by mass		1.87 % by mass					AEUC	11.1 % by mass									no chondrules							6.25 % by mass	extrusion onto the surface of the planet or asteroid via a volcanic eruption				0.15 % by mass									19.4 % by mass		1994		0.04 % by mass				1995			0.012 kg					formed by separation of molten rock in a gravity field			QUE 94201	Queen Alexandra Range, Antarctica								Shergottite, Nakhilite, Chassignite			1.44 % by mass		MWG (JSC)	46.5 % by mass	often minerals not found on Earth		2.04 % by mass					in degrees, minutes and seconds of lattitude and longitude
Theil Mountains											always greater than 4 %	35 to 85 % by volume			PAL						Fo 88+-1			can be severe due to long exposure time to environmental corrosion agents	mixture of iron-nickel alloy and non-metallic minerals				heterogeneous elements are zoned between grain rim and core		schreibersite							1 % or less by volume					0.1 to 7.3 % by volume		from homogeneous to heterogeneous			December 7, 1961							0.3 to 2.8 % by volume	typically one centimeter	28.6 kg							1 % or less by volume	Theil Mountains	NE base of Mount Wrather, Antarctica			78 to 97 kilometers	2.5 to 4 degrees C per million years	from angular fragments to rounded										often minerals not found on Earth					lower because the fall was not witnessed	higher than that of average solar system material	85� 23.9' S., 86� 35.4' W.
Y 793605			very slow												AEUC										no chondrules								cooling in deep underground chambers															1979						1995			0.018 kg								Y 793605	Yamato, Antarctica								Shergottite, Nakhilite, Chassignite					NIPR (Tokyo)		often minerals not found on Earth							in degrees, minutes and seconds of lattitude and longitude
Y-8451											always greater than 4 %	55 to 63 % by volume			PAL				89.6 mg# or 100 * Mg/(Mg + Fe)						large mm sized pyroxene crystals poikilitically containing small olivine grains			40.2 % by weight										1 % or less by volume					1 % by volume	0.37 % by weight	from homogeneous to heterogeneous			recovery year is first 2 numbers in name								typically one centimeter					0.05 % by weight			1 % or less by volume	3 or 4 letter contracted from find location then last two digits of year then id number	indicated by letters in the beginning of name		1 to 3 % by volume	78 to 97 kilometers	2.5 to 4 degrees C per million years	from angular fragments to rounded					49.1 % by weight					often minerals not found on Earth	27					30 to 43 % by volume	in degrees, minutes and seconds of lattitude and longitude							0.08 % by weight			10.2 % by weight