Uranopilite [(UO2)6SO4(OH)6O2x12H2O] is a pretty cool mineral because it is fluorescent and radioactive. It is a minor ore of uranium and is straw yellow in color. It has perfect cleavage, is fluorescent under and ultraviolet light, is nonmagnetic, and has a silky luster. There isn’t that much information on it but it looked pretty cool and had a weird chemical composition.

Uranopilite

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