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ATHENA

MINERALOGY

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Mineral: CHARMARITE
Formula: Mn2+4Al2(OH)12(CO3).3H2O
Crystal System: Hexagonal / Rhombohedral (Trigonal)
Group: Hydrotalcite supergroup. Quintinite group
IMA Number: 1992-026
References: CM 35 (1997), 1541; AM 83 (1998), 1347; MM 76/5 (2012), 1289; MM 88 (2024), 244
Type Locality: Demix quarry, Mont Saint-Hilaire, Rouville Co., Québec, Canada
Comments: Polytypes 2H, 3T

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