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Allan Hills 85085 meteorite, Allan Hills, Victoria Land, Eastern Antarctica, Antarcticai
Regional Level Types
Allan Hills 85085 meteoriteMeteorite Fall Location
Allan HillsGroup of Hills
Victoria LandRegion
Eastern AntarcticaRegion
AntarcticaContinent

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Latitude & Longitude (WGS84):
76° 50' 53'' South , 156° 25' 13'' East
Latitude & Longitude (decimal):
-76.84833,156.42028
GeoHash:
G#: p6r4z6jy0
GRN:
S52E29
Type:
Meteorite Fall Location
Meteorite Class:
CH3 chondrite meteorite
Meteoritical Society Class:
CH3
Metbull:
View entry in Meteoritical Bulletin Database
KΓΆppen climate type:
EF : Ice cap climate
Mindat Locality ID:
204469
Long-form identifier:
mindat:1:2:204469:2
GUID (UUID V4):
c11c0509-6dac-4115-915a-d5cccfef7ace
Other/historical names associated with this locality:
ALH 85085


Allan Hills 85085 (ALH 85085) is a single small stone (mass, 11.6 g) found in 1985 in Antarctica. Olivine (Fayalite 1-5 mol%) and Pyroxene (Ferrosilite 1-4 mol%) indicated a strongly reduced mineralogy. Its mineralogy, abundant metal, and unusual oxygen-&-nitrogen isotope ratios resulted in its designation as the prototype for the CH (β€œHigh metal”) Carbonaceous Chondrites. ALH85085 is one of the few meteorite prototypes not seen to fall. In late 2013 over 20 individual stones (~12-15 original falls??) were listed in Meteoritical Society’s β€œMeteoritical Bulletin Database. None of them represent observed falls. The CH chondrites have tiny chondrules, tiny inclusions, and abundant metal (~20 vol%). Sulfides are rare.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


29 valid minerals. 1 (TL) - type locality of valid minerals.

Meteorite/Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ Alabandite
Formula: MnS
β“˜ Anorthite
Formula: Ca(Al2Si2O8)
β“˜ Armalcolite
Formula: (Mg,Fe2+)Ti2O5
β“˜ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜ Augite var. Fassaite
Formula: (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
β“˜ Chromite
Formula: Fe2+Cr3+2O4
β“˜ DaubrΓ©elite
Formula: Fe2+Cr3+2S4
β“˜ Diopside
Formula: CaMgSi2O6
β“˜ Dolomite
Formula: CaMg(CO3)2
β“˜ Enstatite
Formula: Mg2Si2O6
β“˜ Esseneite
Formula: CaFe3+[AlSiO6]
β“˜ 'Fayalite-Forsterite Series'
β“˜ Forsterite
Formula: Mg2SiO4
β“˜ Gehlenite
Formula: Ca2Al[AlSiO7]
β“˜ Grossite
Formula: CaAl4O7
β“˜ Heazlewoodite
Formula: Ni3S2
β“˜ Hibonite
Formula: CaAl12O19
β“˜ Iron
Formula: Fe
β“˜ Iron var. Kamacite
Formula: (Fe,Ni)
β“˜ Kushiroite (TL)
Formula: CaAl[AlSiO6]
Type Locality:
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ 'Melilite Group'
Formula: Ca2M(XSiO7)
β“˜ Osbornite
Formula: TiN
β“˜ Pentlandite
Formula: (NixFey)Ξ£9S8
β“˜ Perovskite
Formula: CaTiO3
β“˜ Pigeonite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜ 'Plessite'
β“˜ Pyrrhotite
Formula: Fe1-xS
β“˜ Rutile
Formula: TiO2
β“˜ Schreibersite
Formula: (Fe,Ni)3P
β“˜ 'Silica'
β“˜ Spinel
Formula: MgAl2O4
β“˜ Taenite
Formula: (Fe,Ni)
β“˜ Tetrataenite
Formula: FeNi
β“˜ Troilite
Formula: FeS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Iron1.AE.05Fe
β“˜var. Kamacite1.AE.05(Fe,Ni)
β“˜Tetrataenite1.AE.10FeNi
β“˜Taenite1.AE.10(Fe,Ni)
β“˜Osbornite1.BC.15TiN
β“˜Schreibersite1.BD.05(Fe,Ni)3P
Group 2 - Sulphides and Sulfosalts
β“˜Heazlewoodite2.BB.05Ni3S2
β“˜Pentlandite2.BB.15(NixFey)Ξ£9S8
β“˜Troilite2.CC.10FeS
β“˜Pyrrhotite2.CC.10Fe1-xS
β“˜Alabandite2.CD.10MnS
β“˜DaubrΓ©elite2.DA.05Fe2+Cr3+2S4
Group 4 - Oxides and Hydroxides
β“˜Spinel4.BB.05MgAl2O4
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Chromite4.BB.05Fe2+Cr3+2O4
β“˜Armalcolite4.CB.15(Mg,Fe2+)Ti2O5
β“˜Grossite4.CC.15CaAl4O7
β“˜Perovskite4.CC.30CaTiO3
β“˜Hibonite4.CC.45CaAl12O19
β“˜Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
β“˜Dolomite5.AB.10CaMg(CO3)2
Group 9 - Silicates
β“˜Forsterite9.AC.05Mg2SiO4
β“˜Gehlenite9.BB.10Ca2Al[AlSiO7]
β“˜Enstatite9.DA.05Mg2Si2O6
β“˜Pigeonite9.DA.10(CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜Esseneite9.DA.15CaFe3+[AlSiO6]
β“˜Diopside9.DA.15CaMgSi2O6
β“˜Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜var. Fassaite9.DA.15(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
β“˜Kushiroite (TL)9.DA.15CaAl[AlSiO6]
β“˜Anorthite9.FA.35Ca(Al2Si2O8)
Unclassified
β“˜'Fayalite-Forsterite Series'-
β“˜'Silica'-
β“˜'Plessite'-
β“˜'Melilite Group'-Ca2M(XSiO7)

List of minerals for each chemical element

CCarbon
Cβ“˜ DolomiteCaMg(CO3)2
NNitrogen
Nβ“˜ OsborniteTiN
OOxygen
Oβ“˜ AnorthiteCa(Al2Si2O8)
Oβ“˜ Armalcolite(Mg,Fe2+)Ti2O5
Oβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oβ“˜ ChromiteFe2+Cr23+O4
Oβ“˜ DiopsideCaMgSi2O6
Oβ“˜ DolomiteCaMg(CO3)2
Oβ“˜ EnstatiteMg2Si2O6
Oβ“˜ EsseneiteCaFe3+[AlSiO6]
Oβ“˜ ForsteriteMg2SiO4
Oβ“˜ GehleniteCa2Al[AlSiO7]
Oβ“˜ GrossiteCaAl4O7
Oβ“˜ HiboniteCaAl12O19
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ PerovskiteCaTiO3
Oβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oβ“˜ RutileTiO2
Oβ“˜ SpinelMgAl2O4
Oβ“˜ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Oβ“˜ Melilite GroupCa2M(XSiO7)
Oβ“˜ KushiroiteCaAl[AlSiO6]
NaSodium
Naβ“˜ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
MgMagnesium
Mgβ“˜ Armalcolite(Mg,Fe2+)Ti2O5
Mgβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgβ“˜ DiopsideCaMgSi2O6
Mgβ“˜ DolomiteCaMg(CO3)2
Mgβ“˜ EnstatiteMg2Si2O6
Mgβ“˜ ForsteriteMg2SiO4
Mgβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgβ“˜ SpinelMgAl2O4
Mgβ“˜ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
AlAluminium
Alβ“˜ AnorthiteCa(Al2Si2O8)
Alβ“˜ EsseneiteCaFe3+[AlSiO6]
Alβ“˜ GehleniteCa2Al[AlSiO7]
Alβ“˜ GrossiteCaAl4O7
Alβ“˜ HiboniteCaAl12O19
Alβ“˜ SpinelMgAl2O4
Alβ“˜ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Alβ“˜ KushiroiteCaAl[AlSiO6]
SiSilicon
Siβ“˜ AnorthiteCa(Al2Si2O8)
Siβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siβ“˜ DiopsideCaMgSi2O6
Siβ“˜ EnstatiteMg2Si2O6
Siβ“˜ EsseneiteCaFe3+[AlSiO6]
Siβ“˜ ForsteriteMg2SiO4
Siβ“˜ GehleniteCa2Al[AlSiO7]
Siβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siβ“˜ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Siβ“˜ Melilite GroupCa2M(XSiO7)
Siβ“˜ KushiroiteCaAl[AlSiO6]
PPhosphorus
Pβ“˜ Schreibersite(Fe,Ni)3P
SSulfur
Sβ“˜ AlabanditeMnS
Sβ“˜ DaubrΓ©eliteFe2+Cr23+S4
Sβ“˜ HeazlewooditeNi3S2
Sβ“˜ Pentlandite(NixFey)Ξ£9S8
Sβ“˜ PyrrhotiteFe1-xS
Sβ“˜ TroiliteFeS
CaCalcium
Caβ“˜ AnorthiteCa(Al2Si2O8)
Caβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caβ“˜ DiopsideCaMgSi2O6
Caβ“˜ DolomiteCaMg(CO3)2
Caβ“˜ EsseneiteCaFe3+[AlSiO6]
Caβ“˜ GehleniteCa2Al[AlSiO7]
Caβ“˜ GrossiteCaAl4O7
Caβ“˜ HiboniteCaAl12O19
Caβ“˜ PerovskiteCaTiO3
Caβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caβ“˜ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Caβ“˜ Melilite GroupCa2M(XSiO7)
Caβ“˜ KushiroiteCaAl[AlSiO6]
TiTitanium
Tiβ“˜ Armalcolite(Mg,Fe2+)Ti2O5
Tiβ“˜ OsborniteTiN
Tiβ“˜ PerovskiteCaTiO3
Tiβ“˜ RutileTiO2
Tiβ“˜ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
CrChromium
Crβ“˜ ChromiteFe2+Cr23+O4
Crβ“˜ DaubrΓ©eliteFe2+Cr23+S4
MnManganese
Mnβ“˜ AlabanditeMnS
FeIron
Feβ“˜ Armalcolite(Mg,Fe2+)Ti2O5
Feβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feβ“˜ ChromiteFe2+Cr23+O4
Feβ“˜ DaubrΓ©eliteFe2+Cr23+S4
Feβ“˜ EsseneiteCaFe3+[AlSiO6]
Feβ“˜ IronFe
Feβ“˜ Iron var. Kamacite(Fe,Ni)
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ Pentlandite(NixFey)Ξ£9S8
Feβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feβ“˜ PyrrhotiteFe1-xS
Feβ“˜ Schreibersite(Fe,Ni)3P
Feβ“˜ Taenite(Fe,Ni)
Feβ“˜ TetrataeniteFeNi
Feβ“˜ TroiliteFeS
Feβ“˜ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
NiNickel
Niβ“˜ HeazlewooditeNi3S2
Niβ“˜ Iron var. Kamacite(Fe,Ni)
Niβ“˜ Pentlandite(NixFey)Ξ£9S8
Niβ“˜ Schreibersite(Fe,Ni)3P
Niβ“˜ Taenite(Fe,Ni)
Niβ“˜ TetrataeniteFeNi

Other Regions, Features and Areas containing this locality

Antarctic MeteoritesGroup of Meteorite Fall Locations
Antarctic PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Michael K. Weisberg, Martin Prinz & Cherukupalli E. Nehru (Dec 1990). The Bencubbin chondrite breccia and its relationship to CR chondrites and the ALH 85085 meteorite. Meteoritics 25, (#4), 269-279.
www.lpi.ursa.edu (n.d.) http://www.lpi.ursa.edu/meteor/metbull.php
Edward R. D. Scott (1988). A New Kind of Primitive Chondrite: Allan Hills 85085. Abstracts of the Lunar and Planetary Science Conference, vol. 19, p. 1049.
Monica M. Grady & C. T. Pillinger (1990). ALH 85085 - Nitrogen isotope analysis of a highly unusual primitive chondrite. Earth and Planetary Science Letters 97, #1-2, 29-40.
Makoto Kimura, Takashi Mikouchi, Akio Suzuki, Masaaki Miyahara, Eiji Ohtani, and Ahmed El Goresy (2009): Kushiroite, CaAlAlSiO6: A new mineral of the pyroxene group from the ALH 85085 CH chondrite, and its genetic significance in refractory inclusions. American Mineralogist, 94, 1479-1482.
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