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Villiaumite Poudrette quarry Mont SaintHilaire Quebec Canada. Villiaumit Fundort Poudrette quarry Demix quarry UniMix quarry Desourdy quarry Mont SaintHilaire Rouville RCM Montrgie Qubec Kanada Sichtfeld mm Villiaumite Locality Poudrette quarry Demix quarry UniMix quarry Desourdy quarry Mont SaintHilaire Rouville RCM Montrgie