Mineralogy Database

Koashvite Mineral Data

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General Koashvite Information

Help on Chemical  Formula: Chemical Formula: Na6(Ca,Mn)(Ti,Fe)Si6O18•(H2O)
Help on Composition: Composition: Molecular Weight = 711.83 gm
   Sodium     19.38 %  Na   26.12 % Na2O
   Calcium     2.82 %  Ca    3.94 % CaO
   Titanium    3.36 %  Ti    5.61 % TiO2
   Manganese   3.86 %  Mn    4.98 % MnO
   Iron        3.92 %  Fe    5.61 % Fe2O3
   Silicon    23.67 %  Si   50.65 % SiO2
   Hydrogen    0.28 %  H     2.53 % H2O
   Oxygen     42.71 %  O
             ______        ______ 
             100.00 %       99.44 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na6Ca0.5Mn2+0.5Ti0.5Fe3+0.5Si6O18•(H2O)
Help on Environment: Environment: In alkalic pegmatites.
Help on IMA Status: IMA Status: Approved IMA 1974
Help on Locality: Locality: Mt. Koashva, Khibiny massif, Kola, Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Koashvite + Pronunciation Say KOASHVITE
Help on Synonym: Synonym: ICSD 86517
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