johannite

noun

jo·​han·​nite

jōˈhaˌnīt

plural -s

: a mineral Cu(UO₂)₂(SO₄)(OH)₂.6H₂O consisting of a green hydrous basic uranyl copper sulfate that occurs in massive form

Word History

Etymology

German johannit, from Archduke Johann (John) of Austria †1859 Austrian general, founder of a museum in Graz, Austria + German -it -ite

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