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Fermorite Mineral Data
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General Fermorite Information
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 Chemical Formula: |
(Ca,Sr)5(AsO4,PO4)3(OH) |
| Composition: |
Molecular Weight = 707.27 gm |
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Strontium 24.78 % Sr 29.30 % SrO |
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Calcium 17.00 % Ca 23.79 % CaO |
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Arsenic 26.48 % As 40.62 % As2O5 |
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Phosphorus 2.19 % P 5.02 % P2O5 |
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Hydrogen 0.14 % H 1.27 % H2O |
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Oxygen 29.41 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca3Sr2(AsO4)2.5(PO4)0.5(OH) |
| Environment: |
Rare mineral in veinlets through a manganese deposit. |
| IMA Status: |
Valid Species (Pre-IMA) 1911 |
| Locality: |
Sitapar, Chhindwara district, Madhya Pradesh, India. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Lewis Leigh Fermor (1880-1954), former Director of the Geological Survey of India. |
| Name Pronunciation: |
Fermorite + Pronunciation  |
| Synonym: |
ICSD 71351 |
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PDF 14-215 |
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