ˈtȯrbərˌnīt noun
( -s )
Etymology: German torbernit, from Torbern O. Bergman died 1784 Swedish chemist + German -it -ite
: a mineral Cu(UO 2 ) 2 (PO 4 ) 2 .8-12H 2 O consisting of a tetragonal hydrous uranium copper phosphate that is isomorphous with autunite, uranocircite, saléeite, zeunerite, and uranospinite, is of micaceous structure, and occurs in green tabular crystals or in foliated form — called also chalcolite