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Hennomartinite Mineral Data
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General Hennomartinite Information
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 Chemical Formula: |
SrMn+++2Si2O7(OH)2•(H2O) |
| Composition: |
Molecular Weight = 417.69 gm |
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Strontium 20.98 % Sr 24.81 % SrO |
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Manganese 26.31 % Mn 37.80 % Mn2O3 |
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Silicon 13.45 % Si 28.77 % SiO2 |
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Hydrogen 0.97 % H 8.63 % H2O |
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Oxygen 38.30 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
SrMn3+2Si2O7(OH)2•(H2O) |
| Environment: |
Overgrowing sugilite in serandite-pectolite rock. Isotructural with lawsonite. |
| IMA Status: |
Approved IMA 1993 |
| Locality: |
Wessels mine, Kalahari manganese field, South Africa. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Henno Martin, German geologist who escaped to South Africa from Nazi Germany. |
| Name Pronunciation: |
Hennomartinite + Pronunciation  |
| Synonym: |
ICSD 83667 |
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IMA1992-033 |
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