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These mineral photos are copyrighted by their owners and may not be used without permission.
Comments: Brownish-black uranopolycrase microcrystals on quartz.
Location: Fonte del Prete, near San Piero in Campo, Elba, Tuscany, Italy.
Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species
Comments: Brown to black, paper thin, elongated uranopolycrase crystals to 1mm.
Location: Cavetta Bassa, Elba Isle, Livorno Province, Tuscany, Italy.
Scale: Picture size 2 mm.
© Tom Loomis / Dakota Matrix