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Bayleyite: Mg2(UO2)(CO3)3·18(H2O)
Comments: Stellate aggregates of acicular bayleyite crystals under short wave UV light showing pale green fluorescence. Location: Hideout #1 mine, White Canyon district, San Juan County, Utah, USA. Scale: Picture size 3.5 mm. © Paul M. Schumacher
Comments: Stellate aggregates of pale greenish white, acicular bayleyite crystals on a gossanous matrix with white, snowy aragonite. Location: Hideout #1 mine, White Canyon district, San Juan County, Utah, USA. Scale: Picture size 3.5 mm. © Paul M. Schumacher
Comments: Bright yellow coatings of bayleyite. Location: Near Moab, Grand County, Utah, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species