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Tsepinite-Ca Mineral Data
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General Tsepinite-Ca Information
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 Chemical Formula: |
(Ca,K,Na,[ ])2(Ti,Nb)2(Si4O12)(OH,O)2•4(H2O) |
| Composition: |
Molecular Weight = 1,200.24 gm |
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Potassium 1.82 % K 2.20 % K2O |
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Barium 3.09 % Ba 3.45 % BaO |
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Sodium 0.98 % Na 1.32 % Na2O |
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Strontium 2.56 % Sr 3.02 % SrO |
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Calcium 3.74 % Ca 5.23 % CaO |
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Titanium 13.04 % Ti 21.76 % TiO2 |
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Niobium 6.27 % Nb 8.97 % Nb2O5 |
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Silicon 19.05 % Si 40.75 % SiO2 |
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Hydrogen 1.48 % H 13.20 % H2O |
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Oxygen 47.98 % O |
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______ ______ |
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100.00 % 99.90 % = TOTAL OXIDE |
| Empirical Formula: |
Ca1.12K0.56Na0.51Sr0.35Ba0.27Ti3.27Nb0.81Si8.14O24.42(OH)2.45O1.55�7.57(H2O) |
| Environment: |
In the hydrothermally altered zone of a large aegirine-nepheline-K-spar pegmatite. Labuntsovite group; structure determined. |
| IMA Status: |
Approved IMA 2002 (Dana # Added) |
| Locality: |
Lovchorrite mine, Hackman Valley, Yukspor Mountian, Khibina massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the Ca-dominant analogue of tsepinite-Na. |
| Synonym: |
IMA2002-020 |
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