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Grunerite Mineral Data
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General Grunerite Information
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 Chemical Formula: |
[ ]Fe++7Si8O22(OH)2 |
| Composition: |
Molecular Weight = 1,001.61 gm |
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Iron 39.03 % Fe 50.21 % FeO |
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Silicon 22.43 % Si 47.99 % SiO2 |
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Hydrogen 0.20 % H 1.80 % H2O |
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Oxygen 38.34 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Fe2+7(Si8O22)(OH)2 |
| IMA Status: |
Valid Species (Pre-IMA) 1853 |
| Locality: |
Link to MinDat.org Location Data. |
| Name Origin: |
Named for Louis Emmanuel Gruner (1809-1883), Swiss-French chemist who analyzed the mineral. |
| Name Pronunciation: |
Grunerite + Pronunciation  |
| Synonym: |
Amosite |
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ICSD 24590 |
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PDF 44-1401 |
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