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Starkeyite Mineral Data
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General Starkeyite Information
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 Chemical Formula: |
MgSO4•4(H2O) |
| Composition: |
Molecular Weight = 192.43 gm |
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Magnesium 12.63 % Mg 20.94 % MgO |
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Hydrogen 4.19 % H 37.45 % H2O |
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Sulfur 16.66 % S 41.61 % SO3 |
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Oxygen 66.52 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Mg(SO4)•4(H2O) |
| Environment: |
Secondary mineral formed in the presence of iron sulfides; as efflorescences from evaporation of surface and ground waters. |
| IMA Status: |
Valid Species (Pre-IMA) 1956 |
| Locality: |
Starkey mine, Madison Co., Missouri, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the localtiy. |
| Name Pronunciation: |
Starkeyite + Pronunciation  |
| Synonym: |
ICSD 23911 |
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PDF 24-720 |
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