uraninite

Noun

 * 1)  Any of several brownish-black forms of uranium dioxide, UO2, (especially pitchblende) that is the chief ore of uranium; it is isomorphous with thorianite.

Translations

 * Bulgarian: уранинит
 * Czech: ,
 * Dutch: uraniniet
 * Finnish: uraniniitti
 * French:
 * German: Uraninit, Pechblende
 * Italian: uraninite
 * Romanian:
 * Slovak:, smolinec