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Elbrus caldera, Elbrus, Kabardino-Balkarian Republic, Northern Caucasus Region, Russia

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Metasomatically altered dacitic extrusion domes, disseminated by sulfide-bearing stringers, and geyserites (paleothermal springs deposits).



References:
- Gurbanov, A.G., Bogatikov, O.A., Dokuchaev, A.Y., Gazeev, V.M., Abramov, S.S., Groznova, E.O., and Shevchenko, A.V. (2008): Ore-Bearing Hydrothermal Metasomatic Processes in the Elbrus Volcanic Center, the Northern Caucasus, Russia. Geology of Ore Deposits 50(3), 199-217.




Group 1 - Elements
  		• Copper1.AA.05
    Cu
    Group 2 - Sulphides and Sulfosalts
  		• Arsenopyrite2.EB.20
    FeAsS - (Fe
     
    0.90
    		Co
     
    0.10
    		)AsS
  		• Chalcopyrite2.CB.10a
    CuFeS
     
    2
  		• Covellite2.CA.05a
    CuS
  		• Galena2.CD.10
    PbS
  		• Marcasite2.EB.10a
    FeS
     
    2
  		• Millerite2.CC.20
    NiS
  		• Pyrite2.EB.05a
    FeS
     
    2
      var: Cobaltoan Pyrite2.EB.05a
    (Fe,Co)S
     
    2
  		• Pyrrhotite2.CC.10
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
      var: Cobaltoan Pyrrhotite2.CC.10
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
      var: Nickeloan Pyrrhotite2.CC.10
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Group 3 - Halides
  		• Fluorite3.AB.25
    CaF
     
    2
  		• Ralstonite3.CF.05
    NaMgAl(F,OH)
     
    6
    		·H
     
    2
    		O
  		• Zharchikhite3.AC.05
    AlF(OH)
     
    2
    Group 4 - Oxides and Hydroxides
  		• Cristobalite4.DA.15
    SiO
     
    2
  		• Goethite4.FD.10
    α-Fe
    3+
     
    		O(OH)
  		• Hematite4.CB.05
    Fe
     
    2
    		O
     
    3
  		• Ilmenite4.CB.05
    Fe
    2+
     
    		TiO
     
    3
  		• Magnetite4.BB.05
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
  		• Quartz4.DA.05
    SiO
     
    2
  		• Rutile4.DB.05
    TiO
     
    2
  		• Tridymite4.DA.10
    SiO
     
    2
    Group 5 - Nitrates and Carbonates
  		• Aragonite5.AB.15
    CaCO
     
    3
  		• Calcite5.AB.05
    CaCO
     
    3
  		• Dolomite5.AB.10
    CaMg(CO
     
    3
    		)
     
    2
  		• Magnesite5.AB.05
    MgCO
     
    3
  		• Siderite5.AB.05
    FeCO
     
    3
    Group 7 - Sulphates, Chromates, Molybdates and Tungstates
  		• Alunite7.BC.10
    KAl
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
  		• Gypsum7.CD.40
    Ca[SO
     
    4
    		] · 2H
     
    2
    		O
  		• Natrojarosite7.BC.10
    NaFe
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    Group 9 - Silicates
  		• Albite9.FA.35
    Na[AlSi
     
    3
    		O
     
    8
    		]
  		• Biotite9..
  		• Halloysite9.ED.10
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
  		• Kaolinite9.ED.05
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
  		• Montmorillonite9.EC.40
    (Na,Ca)
     
    0.33
    		(Al,Mg)
     
    2
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
  		• Natrolite9.GA.05
    Na
     
    2
    		[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		] · 2H
     
    2
    		O
  		• Saponite9.EC.45
    Ca
     
    0.25
    		(Mg,Fe)
     
    3
    		(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
  		• Zoisite9.BG.10
    {Ca
     
    2
    		}{Al
     
    3
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Unclassified Minerals
  		• 'Albite-Anorthite Series'-
  		• Bravoite-
    (Fe,Ni)S
     
    2
  		• Leucoxene-
  		• Limonite-
    FeO(OH)·nH
     
    2
    		O
  		• 'Saussurite'-


    44 entries listed. 37 valid minerals.

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