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Calcioancylite-(Ce): CaCe(CO3)2(OH)·(H2O)
Comments: Gray calcio-ancylite pseudomorphs after remondite crystals up to 4 cm long. Location: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mt Saint-Hilaire, Rouville Co., Québec, Canada. Scale: 5x4x4 cm. © John Betts - Fine Minerals