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Weloganite: Sr3Na2Zr(CO3)6·3(H2O)
Comments: Pseudo-hexagonal "stacked" plates of white weloganite with flat pedion termination. Location: Francon quarry, Montréal, Jacques Cartier Co., Québec, Canada. Scale: Crystal size 3 mm. © Tom Loomis / Dakota Matrix
Comments: Columnar aggregates of Weloganite crystals. Location: Francon quarry, Montreal, Quebec, Canada. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Weloganite: Sr3Na2Zr(CO3)6·3(H2O) Hydrodresserite: BaAl2(CO3)2(OH)4·3(H2O)
Comments: White spherical aggregates of hydrodresserite with radiating structure with columnar weloganite. Location: Francon Quarry, Montreal, Quebec, Canada. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species