ATHENA MINERALOGY |
Mineral: | AMMONIOALUNITE |
---|---|
Formula: | (NH4)2Al6(SO4)4(OH)12 |
Crystal System: | Rhombohedral (Trigonal) |
Group: | Alunite supergroup. Alunite group |
IMA Number: | 1986-037 |
References: | AM 73 (1988), 14; HB5 (2003) |
Type Locality: | The Geysers, Sonoma Co., California, USA |
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