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Johannsenite Mineral Data
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General Johannsenite Information
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 Chemical Formula: |
CaMnSi2O6 |
| Composition: |
Molecular Weight = 247.18 gm |
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Calcium 16.21 % Ca 22.69 % CaO |
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Manganese 22.23 % Mn 28.70 % MnO |
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Silicon 22.72 % Si 48.62 % SiO2 |
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Oxygen 38.84 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
CaMn2+(Si2O6) |
| Environment: |
Contact metasomatic rocks. |
| IMA Status: |
Valid Species (Pre-IMA) 1932 |
| Locality: |
Empire Zinc Company mine near Hanover, Grant County, New Mexico. Link to MinDat.org Location Data. |
| Name Origin: |
Named after Prof. Albert Johannsen of the University of Chicago. |
| Name Pronunciation: |
Johannsenite + Pronunciation  |
| Synonym: |
ICSD 16906 |
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PDF 38-413 |
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