ATHENA MINERALOGY |
Mineral: | BANNISTERITE |
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Formula: | KCa(Mn,Fe2+,Zn)21(Si,Al)32O76(OH)16.12H2O |
Crystal System: | Monoclinic |
Group: | Stilpnomelane group related |
IMA Number: | 1967-005 |
References: | NJMA 164 (1992), 169; HB2/1 (1995) |
Type Locality: | Benallt mine, Rhiw, Lleyn Peninsula, Caernavonshire (Gwynedd), Wales, United Kingdom |
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