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Polyhalite Mineral Data
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General Polyhalite Information
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 Chemical Formula: |
K2Ca2Mg(SO4)4•2(H2O) |
| Composition: |
Molecular Weight = 602.94 gm |
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Potassium 12.97 % K 15.62 % K2O |
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Calcium 13.29 % Ca 18.60 % CaO |
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Magnesium 4.03 % Mg 6.68 % MgO |
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Hydrogen 0.67 % H 5.98 % H2O |
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Sulfur 21.27 % S 53.12 % SO3 |
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Oxygen 47.76 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
K2Ca2Mg(SO4)4•2(H2O) |
| Environment: |
Sedimentary marine evaporite deposits. |
| IMA Status: |
Valid Species (Pre-IMA) 1818 |
| Locality: |
Potash beds near Carlsbad, New Mexico. Link to MinDat.org Location Data. |
| Name Origin: |
From the Greek, polys, meaning "much" and hals, meaning "salt." in allusion to the many salt components in the formulae.. |
| Name Pronunciation: |
Polyhalite + Pronunciation  |
| Synonym: |
ICSD 6303 |
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PDF 21-982 |
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