Natrozippeite, Uranopilite, Johannite, Uraninite
Very nice, quite rich specimen of bright yellow minerals uranopilite and natrozippeite on dark sandstone, differentiated by their fluorescent colors – yellow green vs yellow, respectively. With pale green johannite also, all as crusts/microcrystals on black uraninite-rich patches in sandstone. Eric Quinter specimen U/Th 0711, pictured on mindat.org. Rare!!
Size: 7.5 cm x 7 cm x 4 cm
SKU: F35 d