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Gtzenite Fluorite Calcite. Gtzenite Fluorite Calcite Locality Poudrette quarry Demix quarry UniMix quarry Desourdy quarry Carrire Mont SaintHilaire Mont SaintHilaire Rouville RCM Montrgie Qubec Canada The gtzenite blades to mm look like old ivory Ex Ron Waddell MOB coll The label says gtzenite and thought this was my best But couldn't