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Tsepinite-Na Mineral Data
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General Tsepinite-Na Information
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 Chemical Formula: |
(Na,H3O,K,Sr,Ba)2(Ti,Nb)2[Si4O12](OH,O)2•3(H2O) |
| Composition: |
Molecular Weight = 2,397.82 gm |
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Potassium 1.30 % K 1.57 % K2O |
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Barium 2.29 % Ba 2.56 % BaO |
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Sodium 4.03 % Na 5.43 % Na2O |
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Strontium 1.83 % Sr 2.16 % SrO |
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Calcium 0.17 % Ca 0.23 % CaO |
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Titanium 8.39 % Ti 13.99 % TiO2 |
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Niobium 14.34 % Nb 20.51 % Nb2O5 |
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Iron 0.23 % Fe 0.33 % Fe2O3 |
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Silicon 18.74 % Si 40.09 % SiO2 |
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Hydrogen 1.45 % H 12.92 % H2O |
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Oxygen 47.24 % O |
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______ ______ |
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100.00 % 99.80 % = TOTAL OXIDE |
| Empirical Formula: |
H34.4Na4.2K0.8Sr0.5Ba0.4Ca0.1Ti4.2Nb3.7Fe3+0.1Si16O70.8 |
| Environment: |
Alkaline rocks. Labuntsovite group; structure |
| IMA Status: |
Approved IMA 2000 (Dana # Added) |
| Locality: |
Khibinpaschchorr, Khibiny alkaline complex, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Anatoliy I. Tsepin (1946-), Russian microprobe analyst. |
| Synonym: |
IMA2000-046 |
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