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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
Group: Feldspathoid group. Cancrinite group
IMA Number: 1872
References: BM 91 (1968), 34; HB2/2 (1995)
Type Locality: Monte Somma, Vesuvio (Vesuvius), Napoli, Campania, Italy

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