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Wightmanite Mineral Data
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General Wightmanite Information
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 Chemical Formula: |
Mg5(BO3)O(OH)5•2(H2O) |
| Composition: |
Molecular Weight = 317.40 gm |
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Magnesium 38.29 % Mg 63.49 % MgO |
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Boron 3.41 % B 10.97 % B2O3 |
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Hydrogen 2.86 % H 25.54 % H2O |
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Oxygen 55.45 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Mg5(BO3)O(OH)5•2(H2O) |
| Environment: |
Contact metamorphosed limestone. |
| IMA Status: |
Approved IMA 1962 |
| Locality: |
Crestmore Quarry, 5 miles NW of Riverside, Riverside Co., California. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Randall H. Wightman (1915-1969), Director of Exploration and Mining of the Riverside Cement Co., Riverside, California, USA. |
| Name Pronunciation: |
Wightmanite + Pronunciation  |
| Synonym: |
ICSD 34371 |
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PDF 14-640 |
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