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Strontiomelane Mineral Data
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General Strontiomelane Information
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 Chemical Formula: |
SrMn++++6Mn+++2O16 |
| Composition: |
Molecular Weight = 783.11 gm |
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Strontium 11.19 % Sr 13.23 % SrO |
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Manganese 56.12 % Mn 20.16 % Mn2O3 / 66.61 % MnO2 |
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Oxygen 32.69 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
SrMn4+6Mn3+2O16 |
| Environment: |
Post-Alpine stage of veining. Sr end-member of the cryptomelane group. |
| IMA Status: |
Approved IMA 1999 (Dana # Added) |
| Locality: |
Found at the Praborna manganese mine, near Saint-Marcel, Aosta Valley, Italian Alps. Link to MinDat.org Location Data. |
| Name Origin: |
The name reflects the presence of strontium and the black color, melanos in Greek. |
| Synonym: |
IMA1995-005 |
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