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Tephroite Mineral Data
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General Tephroite Information
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 Chemical Formula: |
Mn2SiO4 |
| Composition: |
Molecular Weight = 201.96 gm |
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Manganese 54.41 % Mn 70.25 % MnO |
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Silicon 13.91 % Si 29.75 % SiO2 |
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Oxygen 31.69 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+2(SiO4) |
| Environment: |
Contact metamorphism of manganese bearing rocks. |
| IMA Status: |
Valid Species (Pre-IMA) 1823 |
| Locality: |
Franklin and Sparta, New Jersey, USA. Link to MinDat.org Location Data. |
| Name Origin: |
From the Greek tephros - "ash gray" for its color. |
| Name Pronunciation: |
Tephroite + Pronunciation  |
| Synonym: |
ICSD 100433 |
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PDF 35-748 |
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