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ATHENA

MINERALOGY

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Mineral: QUINTINITE
Formula: Mg4Al2(OH)12(CO3).3H2O
Crystal System: Hexagonal
Group: Hydrotalcite supergroup. Quintinite group
IMA Number: 1992-028
References: CM 35 (1997), 1541; AM 83 (1998), 1347;MR 4 (1999), 324; MM 76/5 (2012), 1289; MM 82 (2018), 329
Type Locality: Jacupiranga Alkaline Complex, Cajati, São Paulo, Brazil. Poudrette quarry (Demix quarry), Mont Saint-Hilaire, La Vallée-du-Richelieu, Montérégie, Québec, Canada
Comments: Polytypes -2H, -3R, -2T. -3T, 1-M

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