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ATHENA

MINERALOGY

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Mineral: APOPHYLLITE-(KF) = FLUORAPOPHYLLITE-(K)
Formula: (K,Na)Ca4Si8O20(F,OH).8H2O
Crystal System: Orthorhombic
References: MR 9 (1978), 95; L 3 (1981), 5; HB2/1 (1995); MR 39/2 (2008), 131

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