ATHENA MINERALOGY |
Mineral: | NATROALUNITE |
---|---|
Formula: | Na2Al6(SO4)4(OH)12 |
Crystal System: | Rhombohedral (Trigonal) |
Group: | Alunite supergroup. Alunite group |
IMA Number: | 1987 s.p. |
References: | AM 77 (1992), 1092; HB5 (2003); NJMA 185 (2009), 313 |
Type Locality: | National Bell mine, Silverton, Hinsdale Co., Colorado, USA |
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