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Northwest Africa 998 Martian meteorite (NWA 998), Northwest Africa Meteoritesi
Regional Level Types
Northwest Africa 998 Martian meteorite (NWA 998)Meteorite Fall Location
Northwest Africa MeteoritesMeteorite Fall Location

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Meteorite Class:
Meteoritical Society Class:
Origin locality:


A 456 g Martian meteorite (nakhlite).

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


7 valid minerals.

Meteorite/Rock Types Recorded

Note: this is a very new system on mindat.org and 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:

'Albite-Anorthite Series'
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.; Peslier, A.H. (2012) Water in pyroxene and olivine from Martian meteorites. In The mantle of Mars: Insights from Theory, Geophysics, High-Pressure Studies, and Meteorites.
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.
Calcite
Formula: CaCO3
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.
Chlorapatite
Formula: Ca5(PO4)3Cl
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.
'Clinopyroxene Subgroup'
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.
'Clinopyroxene Subgroup var: Subcalcic augite'
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.
'Fayalite-Forsterite Series'
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.; Peslier, A.H. (2012) Water in pyroxene and olivine from Martian meteorites. In The mantle of Mars: Insights from Theory, Geophysics, High-Pressure Studies, and Meteorites.
'K Feldspar'
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.
Magnetite var: Titaniferous Magnetite
Formula: Fe2+(Fe3+,Ti)2O4
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.
'Orthopyroxene Subgroup'
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.
Pigeonite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.
'Pyroxene Group'
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.; Peslier, A.H. (2012) Water in pyroxene and olivine from Martian meteorites. In The mantle of Mars: Insights from Theory, Geophysics, High-Pressure Studies, and Meteorites.
Pyrrhotite
Formula: Fe7S8
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Reference: Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrrhotite2.CC.10Fe7S8
Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
var: Titaniferous Magnetite4.BB.05Fe2+(Fe3+,Ti)2O4
Group 5 - Nitrates and Carbonates
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Calcite5.AB.05CaCO3
Group 8 - Phosphates, Arsenates and Vanadates
Chlorapatite8.BN.05Ca5(PO4)3Cl
Group 9 - Silicates
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Pigeonite9.DA.10(CaxMgyFez)(Mgy1Fez1)Si2O6
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Clinopyroxene Subgroup'-
'var: Subcalcic augite'-
'Fayalite-Forsterite Series'-
'K Feldspar'-
'Orthopyroxene Subgroup'-
'Pyroxene Group'-
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
AB(XO3)2
Ankerite14.2.1.2Ca(Fe2+,Mg)(CO3)2
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Chlorapatite41.8.1.2Ca5(PO4)3Cl
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Pigeonite65.1.1.4(CaxMgyFez)(Mgy1Fez1)Si2O6
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Clinopyroxene Subgroup'-
'var: Subcalcic augite'-
'Fayalite-Forsterite Series'-
'K Feldspar'-
Magnetite
var: Titaniferous Magnetite
-Fe2+(Fe3+,Ti)2O4
'Orthopyroxene Subgroup'-
'Pyroxene Group'-
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

List of minerals for each chemical element

HHydrogen
H ApatiteCa5(PO4)3(Cl/F/OH)
H Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
CCarbon
C AnkeriteCa(Fe2+,Mg)(CO3)2
C CalciteCaCO3
OOxygen
O Magnetite (var: Titaniferous Magnetite)Fe2+(Fe3+,Ti)2O4
O ChlorapatiteCa5(PO4)3Cl
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O ApatiteCa5(PO4)3(Cl/F/OH)
O Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
O AnkeriteCa(Fe2+,Mg)(CO3)2
O Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
O CalciteCaCO3
O MagnetiteFe2+Fe23+O4
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
MgMagnesium
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
Mg Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
AlAluminium
Al Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
SiSilicon
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
PPhosphorus
P ChlorapatiteCa5(PO4)3Cl
P ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
S PyrrhotiteFe7S8
ClChlorine
Cl ChlorapatiteCa5(PO4)3Cl
Cl ApatiteCa5(PO4)3(Cl/F/OH)
CaCalcium
Ca ChlorapatiteCa5(PO4)3Cl
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca CalciteCaCO3
TiTitanium
Ti Magnetite (var: Titaniferous Magnetite)Fe2+(Fe3+,Ti)2O4
MnManganese
Mn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe Magnetite (var: Titaniferous Magnetite)Fe2+(Fe3+,Ti)2O4
Fe PyrrhotiteFe7S8
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Fe MagnetiteFe2+Fe23+O4
NiNickel
Ni Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
ZnZinc
Zn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Irving, A.J., Kuehner, S.M., Rumble, D., III., Carlson, R.W., Hupé, A.C., and Hupé, G.M. (2002) Petrology and isotopic composition of orthopyroxene-bearing nakhlite NWA 998.
Meteoritics & Planetary Science (2003) 38, Nr 7, Supplement, A189–A248.
Mikouchi, T., McKay, G., and Miyamoto, M. (2006) Mineralogy of nakhlite Martian meteorites: implications for their relative burial depths. 19th General Meeting of the International Mineralogical Association, 23-28 July 2006, Kobe, Japan.
Peslier, A.H. (2012) Water in pyroxene and olivine from Martian meteorites. In The mantle of Mars: Insights from Theory, Geophysics, High-Pressure Studies, and Meteorites.

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