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Comments: Fluorescent, tabular to platy, yellow green autunite crystals on matrix.
Location: Margnac, Haute Vienne, France.
Scale: 1 cm.
© John Veevaert
Autunite: Ca(UO2)2(PO4)2·10-12(H2O) Meta-autunite: Ca(UO2)2(PO4)2·2-6(H2O)
Comments: Corner of a meta-autunite crystal showing the dehydration of autunite (dark green) to meta-autunite (lighter yellowish green)..
Location: Daybreak Mine, Spokane County, Washington, U.S.A..
Scale: See Image.
© Paul M. Schumacher