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Metavanuralite: Al(UO2)2(VO4)2(OH)·8(H2O) Vanuralite: Al(UO2)2(VO4)2(OH)·11(H2O)
Comments: Bright yellow crystals of metavanuralite. Unless sealed in glass, all specimens of vanuralite change to metavanuralite.
Location: Mounana mine (Mouana), Franceville, Haut-Ogooue, Gabon.
Scale: See Image.
© Paul M. Schumacher