thorianite

[ thawr-ee-uh-nahyt, thohr- ]
/ ˈθɔr i əˌnaɪt, ˈθoʊr- /

noun

a rare mineral, mainly thoria, ThO2, but also containing uranium, cerium, and other rare-earth metals, occurring in small, black, cubic crystals: notable for its radioactivity and used as a minor source of thorium.

Origin of thorianite

1900–05; thorian ( thori(a) + -an) + -ite1

Example sentences from the Web for thorianite

British Dictionary definitions for thorianite

thorianite
/ (ˈθɔːrɪəˌnaɪt) /

noun

a rare black mineral consisting of thorium and uranium oxides. Formula: ThO 2 .U 3 O 8