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ATHENA

MINERALOGY

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Mineral: RALSTONITE = HYDROKENORALSTONITE
Formula: NaxMgxAl2-x(F,OH)6.H2O
Crystal System: Cubic
Group: Pyrochlore supergroup
References: MM 54 (1990), 599; HB3 (1997); CM 55 (2017), 115
Type Locality: Arksuk Fjord, Ivigtut, Greenland
Comments: Halide structurally related to Pyrochlore Group

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