thorianite

[ thawr-ee-uh-nahyt, thohr- ]

Phonetic (Standard)IPA

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

/ ˈθɔː��ɪəˌ�Բ�ɪ�� /

noun

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

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Word History and Origins

Origin of thorianite¹

1900–05; thorian ( thori(a) + -an ) + -ite ¹

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Example Sentences

Examples have not been reviewed.

Yet another was "nipponium", extracted by a Japanese researcher in 1908 from the rare mineral, thorianite.

From

If thorianite cannot be obtained, monazite, which is more abundant, may be utilized.

From

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.

From

The richest known source is thorianite, which consists mainly of thorium oxide, and contains 9.5 cc. of helium per gram.

From

Much the best practical source of helium is thorianite, a mineral imported from Ceylon for the manufacture of thoria.

From

thoria thorite

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