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NWA 3171 Martian meteorite, Algeria

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Shergottite, believed to be from Western Algeria.
(Ref: www.meteoriticalsociety.org/bulletin/mb89preview.pdf.)




Group 2 - Sulphides and Sulfosalts
  		• Pyrrhotite2.CC.10
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Group 4 - Oxides and Hydroxides
  		• Baddeleyite4.DE.35
    ZrO
     
    2
  		• Ilmenite4.CB.05
    Fe
    2+
     
    		TiO
     
    3
  		• Ulvöspinel4.BB.05
    Fe
     
    2
    		TiO
     
    4
    Group 8 - Phosphates, Arsenates and Vanadates
  		• Apatite-(CaCl)8.BN.05
    Ca
     
    5
    		[Cl|(PO
     
    4
    		)
     
    3
    		]
  		• Merrillite8.AC.45
    Ca
     
    18
    		Na
     
    2
    		Mg
    2+
    2
    		[PO
     
    4
    		]
     
    14
    Group 9 - Silicates
  		• Augite9.DA.15
    (Ca,Na)(Mg,Fe
    2+
     
    		,Al,Fe
    3+
     
    		,Ti)[(Si,Al)
     
    2
    		O
     
    6
    		]
  		• Pigeonite9.DA.10
    (Mg,Fe
    2+
     
    		,Ca)(Mg,Fe
    2+
     
    		)[Si
     
    2
    		O
     
    6
    		]
    Unclassified Minerals
  		• Maskelynite-


    9 entries listed. 8 valid minerals.

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