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Ammonioalunite Mineral Data
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General Ammonioalunite Information
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 Chemical Formula: |
(NH4)Al3(SO4)2(OH)6 |
| Composition: |
Molecular Weight = 393.15 gm |
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Aluminum 20.59 % Al 38.90 % Al2O3 |
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Hydrogen 1.03 % H - % Calc as (NH4)2O |
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Hydrogen 1.54 % H 13.75 % H2O |
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Sulfur 16.31 % S 40.73 % SO3 |
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Nitrogen 3.56 % N 6.62 % (NH4)2O |
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Oxygen 56.97 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
(NH4)Al3(SO4)2(OH)6 |
| Environment: |
Acidic hot springs with temperatures below 100 deg C and low potassium content of the waters. |
| IMA Status: |
Approved IMA 1987 |
| Locality: |
The Geysers, Sonoma County, California, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for its composition (Ammonia, Al,). |
| Name Pronunciation: |
Ammonioalunite + Pronunciation  |
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