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Tyuyamunite: Ca(UO2)2V2O8·5-8(H2O)
Comments: Yellow tyuyamunite crystals 1 mm in size. Location: Marie Mine, Carbon Co., Montana. USA. Scale: picture size 2 cm.. © John Veevaert
Tyuyamunite: Ca(UO2)2V2O8·5-8(H2O) Grantsite: Na4CaxV++++2xV+++++12-2xO32·8(H2O)
Comments: Dark olive green waxy coatings of grantsite with greenish-yellow tyuyamunite and sandstone. Location: F-33 Mine, near Grants, Valencia County, New Mexico, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Comments: Bright yellow rosette crystals of tyuyamunite on matrix. Location: Marie mine, Carbon County, Montana, USA. Scale: Rosette size 0.5 mm. © Tom Loomis / Dakota Matrix