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ATHENA

MINERALOGY

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Mineral: EWALDITE
Formula: (Ba,Sr)(Ca,Na,Y,Ce)(CO3)2.6H2O
Crystal System: Hexagonal
Group: Mckelveyite group
IMA Number: 1969-013
References: TMPM 15 (1971), 201; ZRMO121/1 (1992), 56; HB5 (2003); EJM 35/1 (2023), 133
Type Locality: Green River Formation, Sweetwater Co., Wyoming, USA

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