Mineralogy Database

Kolfanite Mineral Data

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General Kolfanite Information

Help on Chemical  Formula: Chemical Formula: Ca2Fe+++3O2(AsO4)3•2(H2O)
Help on Composition: Composition: Molecular Weight = 732.48 gm
   Calcium   10.94 %  Ca   15.31 % CaO
   Iron      22.87 %  Fe   32.70 % Fe2O3
   Arsenic   30.69 %  As   47.07 % As2O5
   Hydrogen   0.55 %  H     4.92 % H2O
   Oxygen    34.95 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2Fe3+3O2(AsO4)3•2(H2O)
Help on Environment: Environment: An alteration product of holtite in a hydrothermally altered granite pegmatite.
Help on IMA Status: IMA Status: Approved IMA 1982
Help on Locality: Locality: Mt. Vasin-Myl�k, Voron�i massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the abbreviation for the Russian KOL�skii Filial Akademii Nauk SSSR [Kola Branch of the Academy of Sciences of the USSR].
Help on Name Pronunciation: Name Pronunciation: Kolfanite + Pronunciation Say KOLFANITE