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Chamosite Mineral Data
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General Chamosite Information
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 Chemical Formula: |
(Fe++,Mg,Fe+++)5Al(Si3Al)O10(OH,O)8 |
| Composition: |
Molecular Weight = 664.18 gm |
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Magnesium 5.49 % Mg 9.10 % MgO |
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Aluminum 8.12 % Al 15.35 % Al2O3 |
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Iron 29.43 % Fe 32.45 % FeO / 6.01 % Fe2O3 |
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Silicon 12.69 % Si 27.14 % SiO2 |
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Hydrogen 0.91 % H 8.14 % H2O |
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Oxygen 43.36 % O |
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______ ______ |
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100.00 % 98.19 % = TOTAL OXIDE |
| Empirical Formula: |
Fe2+3Mg1.5AlFe3+0.5Si3AlO12(OH)6 |
| Environment: |
Metamorphosed iron deposits. |
| IMA Status: |
Valid Species (Pre-IMA) 1820 |
| Locality: |
Chamoson, Rhone Valley, Switzerland. Link to MinDat.org Location Data. |
| Name Origin: |
Named after its locality. |
| Synonym: |
Brunsvigite |
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Daphnite |
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Delessite |
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Thuringite (Fe) |
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