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Thorite :: Thorite (n.) A mineral of a brown to black color, or, as in the variety orangite, orange-yellow. It is essentially a silicate of thorium..

Thoria :: Thoria (n.) A rare white earthy substance, consisting of the oxide of thorium; -- formerly called also thorina..

Wasium :: Wasium (n.) A rare element supposed by Bahr to have been extracted from wasite, but now identified with thorium..

Uraninite :: Uraninite (n.) A mineral consisting chiefly of uranium oxide with some lead, thorium, etc., occurring in black octahedrons, also in masses with a pitchlike luster; pitchblende..

Eschynite :: Eschynite (n.) A rare mineral, containing chiefly niobium, titanium, thorium, and cerium. It was so called by Berzelius on account of the inability of chemical science, at the time of its discovery, to separate some of its constituents..

Thoric :: Thoric (a.) Of or pertaining to thorium; designating the compounds of thorium.

Thorium :: Thorium (n.) A metallic element found in certain rare minerals, as thorite, pyrochlore, monazite, etc., and isolated as an infusible gray metallic powder which burns in the air and forms thoria; -- formerly called also thorinum. Symbol Th. Atomic weight 232.0..

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