jo·​han·​nite | \ jōˈhaˌnīt\
plural -s

Definition of johannite

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

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History and Etymology for johannite

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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