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thorianite
[ thawr-ee-uh-nahyt, thohr- ]
noun
- a rare mineral, mainly thoria, ThO 2 , 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.
thorianite
/ ˈθɔ˰ùɪəˌ²Ô²¹Éª³Ù /
noun
- a rare black mineral consisting of thorium and uranium oxides. Formula: ThO 2 .U 3 O 8
˜yÐÄvlog History and Origins
Origin of thorianite1
Example Sentences
Yet another was "nipponium", extracted by a Japanese researcher in 1908 from the rare mineral, thorianite.
Thorianite, however, contains no silica, and until it is shown that metallic oxides behave in the same way this explanation must be accepted with reserve.
If thorianite cannot be obtained, monazite, which is more abundant, may be utilized.
The richest known source is thorianite, which consists mainly of thorium oxide, and contains 9.5 cc. of helium per gram.
Much the best practical source of helium is thorianite, a mineral imported from Ceylon for the manufacture of thoria.
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