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ATHENA

MINERALOGY

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Mineral: HYALOPHANE
Formula: (K,Ba)Al(Si,Al)3O8
Crystal System: Monoclinic
Group: Feldspar group
References: AM 68 (1983), 112; HB2/1 (1995)
Type Locality: Lengenbach, Binntal, Valais (Wallis), Switzerland
Comments: A variety of microcline

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