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ATHENA

MINERALOGY

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Mineral: ASHCROFTINE-(Y)
Formula: K5Na5Y12Si28O70(OH)2(CO3)8(H2O)8
Crystal System: Quadradic (Tetragonal)
IMA Number: 1987 s.p.
References: MM 37 (1969), 515; HB2/1 (1995)
Type Locality: Pocket K, Narsarsuk, Julianehaab distr., Greenland

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