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Sursassite Mineral Data
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General Sursassite Information
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 Chemical Formula: |
Mn++2Al3(SiO4)(Si2O7)(OH)3 |
| Composition: |
Molecular Weight = 502.09 gm |
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Manganese 21.88 % Mn 28.26 % MnO |
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Aluminum 16.12 % Al 30.46 % Al2O3 |
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Silicon 16.78 % Si 35.90 % SiO2 |
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Hydrogen 0.60 % H 5.38 % H2O |
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Oxygen 44.61 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+2Al3(SiO4)(Si2O7)(OH)3 |
| Environment: |
As vein fillings in manganese deposits in low-grade metasediments. |
| IMA Status: |
Valid Species (Pre-IMA) |
| Locality: |
Val d'Err, Oberhalbstein, Graub�unden, Switzerland. Link to MinDat.org Location Data. |
| Name Origin: |
Named from the Roman name for Oberhalbstein, Sursass, Switzerland. |
| Name Pronunciation: |
Sursassite + Pronunciation  |
| Synonym: |
ICSD 40031 |
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PDF 37-479 |
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