two yellow radioactives, Novacekite and Sklowdowskite in a matrix of gypsum/calcite from mexico
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Fine sample of Autunite from the premier French location. Clusters on a granular quartzsite matrix. Best to be placed in one spot with minimal handling.
12 x 11.5 x 5.8 cm
Fine thumbnail of this unique radioactive mineral
2.2 x 1.6 x .6 cm
Great cluster of this bright yellow uranium mineral!
8 x 6.1 x 4.7 cm