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Chloritoid Mineral Data
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General Chloritoid Information
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 Chemical Formula: |
(Fe++,Mg,Mn)2Al4Si2O10(OH)4 |
| Composition: |
Molecular Weight = 484.71 gm |
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Magnesium 3.01 % Mg 4.99 % MgO |
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Manganese 2.27 % Mn 2.93 % MnO |
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Aluminum 22.27 % Al 42.07 % Al2O3 |
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Iron 13.83 % Fe 17.79 % FeO |
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Silicon 11.59 % Si 24.79 % SiO2 |
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Hydrogen 0.83 % H 7.43 % H2O |
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Oxygen 46.21 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Fe2+1.2Mg0.6Mn2+0.2Al4Si2O10(OH)4 |
| Environment: |
Metamorphic phyllites, schists and marbles. |
| IMA Status: |
Valid Species (Pre-IMA) 1837 |
| Locality: |
Saas and Lukmanier, Switzerland. Link to MinDat.org Location Data. |
| Name Origin: |
Named after its resemblance to chlorite minerals. |
| Synonym: |
Sismondine(Mg) |
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