Mineralogy Database

Irtyshite Mineral Data

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General Irtyshite Information

Help on Chemical  Formula: Chemical Formula: Na2(Ta,Nb)4O11
Help on Composition: Composition: Molecular Weight = 901.74 gm
   Sodium     5.10 %  Na    6.87 % Na2O
   Tantalum  70.23 %  Ta   85.76 % Ta2O5
   Niobium    5.15 %  Nb    7.37 % Nb2O5
   Oxygen    19.52 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2Ta3.5Nb0.5O11
Help on Environment: Environment: Granitic pegmatites.
Help on IMA Status: IMA Status: Approved IMA 1985
Help on Locality: Locality: Irtysh River area, eastern Kazakhstan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Irtyshite + Pronunciation Say IRTYSHITE
Help on Synonym: Synonym: ICSD 201714
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