8052 Elpidite, Poudrette quarry, Mont Saint-Hilaire, La Vallee-du-Richelieu RCM, Monteregie, Quebec, Canada October 5, 2019 Steve Canada North and Central Americas ex Bernie and Margaret Day Collection
Canada North and Central Americas 8006 Elpidite, Poudrette quarry, Mont Saint-Hilaire, La Vallee-du-Richelieu RCM, Monteregie, Quebec, Canada October 5, 2019
Canada North and Central Americas ncat VHD15, Thomasclarkite-(Y), Molybdenite, Elpidite, Poudrette Quarry, Mont Saint Hilaire, Quebec, Canada November 17, 2019
Canada North and Central Americas 8008 Rhodochrosite, Elpidite, Poudrette quarry, Mont Saint-Hilaire, La Vallee-du-Richelieu RCM, Monteregie, Quebec, Canada October 5, 2019
Canada North and Central Americas ncat ANK MSH110 Elpidite, Gaidonnayite, Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada December 13, 2022