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Cerro Sapo, Ayopaya Province, Cochabamba Department, Bolivia

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One of the few alkaline provinces in the Andes. The interesting minerals are from a large dike, 2km long, 1 - 5m wide, of pegmatitic ankerite-sodalite-barite carbonatite, which cuts a nepheline syenite intrusion and the surrounding hornfels and slate. Source of all the sodalite beads found in Inca and pre-Inca ruins ranging from Quito (Ecuador) to Tucuman (Argentina).




Group 2 - Sulphides and Sulfosalts
  		• Chalcopyrite2.CB.10a
    CuFeS
     
    2
  		• Galena2.CD.10
    PbS
  		• Molybdenite2.EA.30
    MoS
     
    2
  		• Pyrite2.EB.05a
    FeS
     
    2
  		• Sphalerite2.CB.05a
    (Zn,Fe
    2+
     
    		)S
    Group 3 - Halides
  		• Fluorite3.AB.25
    CaF
     
    2
    Group 4 - Oxides and Hydroxides
  		• Goethite4.FD.10
    α-Fe
    3+
     
    		O(OH)
  		• Hematite4.CB.05
    Fe
     
    2
    		O
     
    3
  		• Magnetite4.BB.05
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
  		• Nordstrandite4.FE.10
    Al(OH)
     
    3
  		• Pyrochlore4.DH.15
    (Ca,Na)
     
    2
    		Nb
     
    2
    		O
     
    6
    		(OH,F)
    Group 5 - Nitrates and Carbonates
  		• Ankerite5.AB.10
    Ca(Fe
    2+
     
    		 ,Mg,Mn
    2+
     
    		)(CO
     
    3
    		)
     
    2
  		• Burbankite5.AC.30
    (Na,Ca)
     
    3
    		(Sr,Ba,Ce)
     
    3
    		(CO
     
    3
    		)
     
    5
  		• Calcite5.AB.05
    CaCO
     
    3
  		• Daqingshanite-(Ce)5.BF.15
    (Sr,Ca,Ba)
     
    2
    		(Ce,La)PO
     
    4
    		(CO
     
    3
    		,OH,F)
     
    3
  		• Dawsonite5.BB.10
    NaAlCO
     
    3
    		(OH)
     
    2
  		• Olekminskite5.AB.40
    Sr(Sr,Ba)(CO
     
    3
    		)
     
    2
  		• Siderite5.AB.05
    FeCO
     
    3
  		• Strontianite5.AB.15
    SrCO
     
    3
    Group 7 - Sulphates, Chromates, Molybdates and Tungstates
  		• Baryte7.AD.35
    BaSO
     
    4
    Group 8 - Phosphates, Arsenates and Vanadates
  		• Goyazite8.BL.10
    SrAl
     
    3
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    2
    		] · H
     
    2
    		O
  		• Krasnovite8.DK.35
    Ba(Al,Mg)[(OH)
     
    2
    		|(PO
     
    4
    		,CO
     
    3
    		)] · H
     
    2
    		O
    Group 9 - Silicates
  		• Aegirine9.DA.25
    NaFe
    3+
     
    		[Si
     
    2
    		O
     
    6
    		]
  		• Albite9.FA.35
    Na[AlSi
     
    3
    		O
     
    8
    		]
      var: Oligoclase9.FA.35
    (Na,Ca)[Al(Si,Al)Si
     
    2
    		O
     
    8
    		]
  		• Allanite-(Ce)9.BG.05
    {CaCe}{Al
     
    2
    		Fe
    2+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
  		• Amesite9.ED.15
    Mg
     
    2
    		Al[(OH)
     
    4
    		|AlSiO
     
    5
    		]
  		• Analcime9.GB.05
    Na
     
    2
    		[Al
     
    2
    		Si
     
    4
    		O
     
    12
    		] · 2H
     
    2
    		O
  		• Augite9.DA.15
    (Ca,Na)(Mg,Fe
    2+
     
    		,Al,Fe
    3+
     
    		,Ti)[(Si,Al)
     
    2
    		O
     
    6
    		]
  		• Bellbergite9.GD.20
    (K,Ba,Sr)
     
    2
    		Sr
     
    2
    		Ca
     
    2
    		(Ca,Na)
     
    4
    		[Al
     
    3
    		Si
     
    3
    		O
     
    12
    		]
     
    6
    		 · 30H
     
    2
    		O
  		• Biotite9..
  		• Cancrinite9.FB.05
    Na
     
    6
    		Ca
     
    2
    		[(CO
     
    3
    		)
     
    2
    		|Al
     
    6
    		Si
     
    6
    		O
     
    24
    		] · 2H
     
    2
    		O
  		• Diopside9.DA.15
    CaMg[Si
     
    2
    		O
     
    6
    		]
  		• Gonnardite9.GA.05
    Na
     
    2
    		Ca[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		]
     
    2
    		 · 7H
     
    2
    		O
  		• Harmotome9.GC.10
    (Ba
     
    0.5
    		,Ca
     
    0.5
    		,K,Na)
     
    5
    		[Al
     
    5
    		Si
     
    11
    		O
     
    32
    		] ·12H
     
    2
    		O
  		• Hisingerite9.ED.10
    Fe
    3+
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    		·2H
     
    2
    		O
  		• Microcline9.FA.30
    K[AlSi
     
    3
    		O
     
    8
    		]
  		• Natrolite9.GA.05
    Na
     
    2
    		[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		] · 2H
     
    2
    		O
  		• Nepheline9.FA.05
    (Na,K)[AlSiO
     
    4
    		]
  		• Orthoclase9.FA.30
    K[AlSi
     
    3
    		O
     
    8
    		]
  		• Sodalite9.FB.10
    Na
     
    8
    		[Cl
     
    2
    		|Al
     
    6
    		Si
     
    6
    		O
     
    24
    		]
  		• Titanite9.AG.15
    CaTi[O|SiO
     
    4
    		]
    Unclassified Minerals
  		• 'Amphibole Group'-
  		• 'Apatite'-
  		• 'Hornblende'-
  		• 'Mckelveyite'-
  		• 'Olivine'-
    (Mg,Fe
    2+
     
    		)
     
    2
    		[SiO
     
    4
    		]


    47 entries listed. 41 valid minerals.

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