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Tsepinite-K Mineral Data
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General Tsepinite-K Information
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 Chemical Formula: |
(K,Ba,Na)2(Ti,Nb)2(Si4O12)(OH,O)2•3(H2O) |
| Composition: |
Molecular Weight = 614.51 gm |
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Potassium 5.47 % K 6.59 % K2O |
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Barium 10.28 % Ba 11.48 % BaO |
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Sodium 1.61 % Na 2.17 % Na2O |
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Titanium 12.93 % Ti 21.58 % TiO2 |
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Manganese 0.89 % Mn 1.15 % MnO |
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Niobium 4.99 % Nb 7.14 % Nb2O5 |
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Iron 0.27 % Fe 0.39 % Fe2O3 |
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Silicon 18.28 % Si 39.11 % SiO2 |
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Hydrogen 1.16 % H 10.39 % H2O |
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Oxygen 44.11 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
K0.86Ba0.46Na0.43Mn2+0.1Ti1.66Nb0.33Fe3+0.03Si4O12(OH)1.21O0.79�2.94(H2O) |
| Environment: |
Alkaline pegmatites as pseudomorphs after murmanite. Labuntsovite group; structure determined. |
| IMA Status: |
Approved IMA 2003 (Dana # Added) |
| Locality: |
Mt. Karnasurt, Lovozero alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the K-dominant analog of tsepinite-Na. |
| Synonym: |
IMA2002-005 |
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