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Thorosteenstrupine Mineral Data
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General Thorosteenstrupine Information
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 Chemical Formula: |
(Ca,Th,Mn)3Si4O11F•6(H2O) |
| Composition: |
Molecular Weight = 712.88 gm |
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Calcium 10.12 % Ca 14.16 % CaO |
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Thorium 29.29 % Th 33.33 % ThO2 |
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Manganese 2.31 % Mn 2.99 % MnO |
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Silicon 15.76 % Si 33.71 % SiO2 |
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Hydrogen 1.70 % H 15.16 % H2O |
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Oxygen 38.15 % O |
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Fluorine 2.67 % F 2.67 % F |
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- %
F -1.12 % -O=F2 |
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______ ______ |
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100.00 % 100.90 % = TOTAL OXIDE |
| Empirical Formula: |
Ca1.8Th0.9Mn2+0.3Si4O11F•6(H2O) |
| Environment: |
Metasomatic veins associated with orthoclase. |
| IMA Status: |
Approved IMA 1962 |
| Locality: |
Unspecified locality in eastern Siberia, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for steenstrupine and the thorium content. |
| Name Pronunciation: |
Thorosteenstrupine + Pronunciation  |
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