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Tschermakite Mineral Data
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General Tschermakite Information
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 Chemical Formula: |
[ ]Ca2(Mg3AlFe+++)Si6Al2O22(OH)2 |
| Composition: |
Molecular Weight = 844.38 gm |
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Calcium 9.49 % Ca 13.28 % CaO |
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Magnesium 8.64 % Mg 14.32 % MgO |
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Aluminum 9.59 % Al 18.11 % Al2O3 |
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Iron 6.61 % Fe 9.46 % Fe2O3 |
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Silicon 19.96 % Si 42.69 % SiO2 |
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Hydrogen 0.24 % H 2.13 % H2O |
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Oxygen 45.48 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca2Mg3Al3Fe3+Si6O22(OH)2 |
| Environment: |
High grade metamorphic rocks. |
| IMA Status: |
Valid Species (Pre-IMA) 1945 |
| Locality: |
Bamle, Norway Link to MinDat.org Location Data. |
| Name Origin: |
Named for Gustav Tschermak von Sessenegg (1836-1927), Austrian mineralogist. |
| Name Pronunciation: |
Tschermakite + Pronunciation  |
| Synonym: |
Aluminotschermakite |
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