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ATHENA

MINERALOGY

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Mineral:MICROSOMMITE
Formula:(Na,Ca,K)7-8(Si,Al)12O24(Cl,SO4,CO3)2-3
Crystal System:Hexagonal
Strunz Nr:8/J.09-30
Group:Cancrinite-Sodalite group Cancrinite subgroup
References:BM 91 (1968), 34; HB2/2 (1995)
Type Locality:Monte Somma, Vesuvio (Vesuvius), Napoli, Campania, Italy

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