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Esperite Mineral Data
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General Esperite Information
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 Chemical Formula: |
PbCa3Zn4(SiO4)4 |
| Composition: |
Molecular Weight = 957.33 gm |
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Calcium 12.56 % Ca 17.57 % CaO |
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Zinc 27.32 % Zn 34.01 % ZnO |
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Silicon 11.73 % Si 25.11 % SiO2 |
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Lead 21.64 % Pb 23.31 % PbO |
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Oxygen 26.74 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
PbCa3Zn4(SiO4)4 |
| Environment: |
Metamorphosed zinc deposits associated with larsenite. |
| IMA Status: |
Approved IMA 1965 |
| Locality: |
Franklin, Sussex Co., New Jersey, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Esper Signius Larsen, Jr. (1879-1961), petrologist and Professor of Geology, Harvard University. |
| Name Pronunciation: |
Esperite  |
| Synonym: |
Calcium larsenite |
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