ATHENA MINERALOGY |
Mineral: | COOMBSITE |
---|---|
Formula: | K(Mn2+,Fe2+,Mg)13(Si,Al)18O42(OH)14 |
Crystal System: | Rhombohedral (Trigonal) |
IMA Number: | 1989-058 |
References: | NZ J. Geol. Geoph. 34 (1991), 329; HB2/1 (1995); NM 90-94 (1997) |
Type Locality: | Watson's Beach, Otago, South Island, New Zealand |
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