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ATHENA

MINERALOGY

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Mineral: GMELINITE-Na
Formula: (Na,K,Ca0,5)4[Al8Si16O48].22H2O
Crystal System: Hexagonal
Group: Zeolite group. Gmelinite series
IMA Number: 1997 s.p.
References: HB2/1 (1995); EJM 10 (1998), 1037; L 10 (2017), 8
Type Locality: Little Deer Park, Glenarm, Co. Antrim, Northern Ireland, United Kingdom

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