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Colemanite Mineral Data
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General Colemanite Information
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 Chemical Formula: |
Ca2B6O11•5(H2O) |
| Composition: |
Molecular Weight = 411.09 gm |
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Calcium 19.50 % Ca 27.28 % CaO |
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Boron 15.78 % B 50.81 % B2O3 |
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Hydrogen 2.45 % H 21.91 % H2O |
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Oxygen 62.27 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca2B6O11•5(H2O) |
| Environment: |
Lacusterine limestone hosted borate deposits. |
| IMA Status: |
Valid Species (Pre-IMA) 1884 |
| Locality: |
Furnace Creek district, Death Valley, Inyo Co. California. Link to MinDat.org Location Data. |
| Name Origin: |
After William T. Coleman, owner of the Death Valley, California mine where this species was first found. |
| Name Pronunciation: |
Colemanite + Pronunciation  |
| Synonym: |
ICSD 75921 |
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Neocolmanite |
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PDF 33-267 |
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