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Alunite Mineral Data
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General Alunite Information
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 Chemical Formula: |
KAl3(SO4)2(OH)6 |
| Composition: |
Molecular Weight = 414.21 gm |
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Potassium 9.44 % K 11.37 % K2O |
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Aluminum 19.54 % Al 36.92 % Al2O3 |
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Hydrogen 1.46 % H 13.05 % H2O |
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Sulfur 15.48 % S 38.66 % SO3 |
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Oxygen 54.08 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
KAl3(SO4)2(OH)6 |
| Environment: |
Rock forming mineral where acid, often ore-bearing, solutions have altered orthoclase feldspar-rich rocks. |
| IMA Status: |
Valid Species (Pre-IMA) 1824 |
| Locality: |
Marysvale, Utah. Link to MinDat.org Location Data. |
| Name Origin: |
From the Latin alunit, meaning "alum." |
| Name Pronunciation: |
Alunite  |
| Synonym: |
Aluminilite |
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ICSD 12106 |
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PDF 13-136 |
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