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Ferrotschermakite Mineral Data
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General Ferrotschermakite Information
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 Chemical Formula: |
[ ]Ca2(Fe++3AlFe+++)Si6Al2O22(OH) |
| Composition: |
Molecular Weight = 939.00 gm |
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Calcium 8.54 % Ca 11.94 % CaO |
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Aluminum 8.62 % Al 16.29 % Al2O3 |
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Iron 23.79 % Fe 22.95 % FeO / 8.50 % Fe2O3 |
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Silicon 17.95 % Si 38.39 % SiO2 |
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Hydrogen 0.21 % H 1.92 % H2O |
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Oxygen 40.89 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca2Fe2+3AlFe3+(Si6Al2O22)(OH)2 |
| IMA Status: |
Approved IMA 1978 (Dana # Added) |
| Locality: |
Link to MinDat.org Location Data. |
| Name Origin: |
Named for its composition and for Gustav Tschermak von Sessenegg (1836-1927), Austrian mineralogist. |
| Synonym: |
ICSD 9222 |
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PDF 43-665 |
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