uraninite
IPA: jɝˈeɪnɪnaɪt
noun
- (mineralogy) Any of several brownish-black forms of uranium dioxide, UO₂, (especially pitchblende) that is the chief ore of uranium; it is isomorphous with thorianite.
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Examples of "uraninite" in Sentences
- Uraninite is a major ore of uranium.
- It is a secondary alteration product from uraninite.
- Permian volcanic activity formed the uraninite mineralization.