thorite

(t̸hôrīt′)

noun

a rare, usually dark, hard, radioactive mineral, thorium silicate, ThSiO, that is usually hydrated

Origin: Swed thorit: see thorium & -ite

See thorite in American Heritage Dictionary 4

noun
A vitreous brownish-yellow to black radioactive mineral, essentially ThSiO4, an ore of thorium.

Origin:

Origin: thor(ium)

Origin: + -ite1

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