ATHENA MINERALOGY |
Mineral: | SIMPSONITE |
---|---|
Formula: | Al4(Ta,Nb)3(O,OH,F)14 |
Crystal System: | Rhombohedral (Trigonal) |
IMA Number: | 1938 |
References: | MM 33 (1963), 458; HB3 (1997) |
Type Locality: | Tabba Tabba, Western Australia, Australia |
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