uranopilite

noun

ura·​nopi·​lite

ˌyu̇rənōˈpīˌlīt,

-ˈnäpəˌlīt

plural -s

: a mineral (UO₂)₆(SO₄)(OH)₁₀.12H₂O that is a hydrous basic sulfate of uranium and occurs in yellow velvety incrustations composed of microscopic needlelike crystals

Word History

Etymology

German uranopilit, from uran- entry 2 + Greek pilos felt + German -it -ite (hair)

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