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Yofortierite Mineral Data
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General Yofortierite Information
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 Chemical Formula: |
(Mn,Mg)5Si8O20(OH)2•8-9(H2O) |
| Composition: |
Molecular Weight = 1,002.61 gm |
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Calcium 0.80 % Ca 1.12 % CaO |
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Magnesium 1.45 % Mg 2.41 % MgO |
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Manganese 21.92 % Mn 28.30 % MnO |
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Aluminum 0.81 % Al 1.53 % Al2O3 |
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Zinc 0.65 % Zn 0.81 % ZnO |
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Silicon 22.41 % Si 47.94 % SiO2 |
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Hydrogen 2.01 % H 17.97 % H2O |
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Oxygen 49.95 % O |
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______ ______ |
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100.00 % 100.08 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+4Mg0.6Al0.3Ca0.2Zn0.1Si8O20.3(OH)2�9(H2O) |
| Environment: |
Late stage hydrothermal mineral in pegmatite veins within nepheline syenite. |
| IMA Status: |
Approved IMA 1975 |
| Locality: |
Mont Saint-Hilaire, Quebec, Canada. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Yves Oscar Fortier (1914-), formater Director of the Geological Survey of Canada (1964-1972). |
| Synonym: |
IMA1974-045 |
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Mn-palygorskite |
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Sepiolite - Mn bearing |
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