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ATHENA

MINERALOGY

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Mineral: SAMUELSONITE
Formula: (Ca,Ba)Ca8(Fe2+,Mn2+)4Al2(PO4)10(OH)2
Crystal System: Monoclinic
IMA Number: 1974-026
References: AM 60 (1975), 957; HB4 (2000)
Type Locality: Palermo Nr 1 pegmatite, North Groton, Grafton Co., New Hampshire, USA

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