URANINITE

uraninite, pitchblende

(noun) a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium; uraninite in massive form is called pitchblende which is the chief uranium ore

Source: WordNet® 3.1

Etymology

Noun

uraninite (plural uraninites)

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

Source: Wiktionary

U*ran"i*nite, n. (Min.)

Definition: A mineral consisting chiefly of uranium oxide with some lead, thorium, etc., occurring in black octahedrons, also in masses with a pitchlike luster; pitchblende.

Source: Webster’s Unabridged Dictionary 1913 Edition

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