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2 results for “Thorianite”

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Britannica 11th

Encyclopaedia Britannica · 11th edition

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Thorianite

Britannica 11th

THORIANITE, a rare mineral, discovered by W. D. Holland, and found in the gem-gravels of Ceylon, where it occurs as small, heavy, black, cubic crystals, usually much water-worn. It was so named by W. R. Dunstan, on account of its high percentage of thorium (ab ...

Vol. 26, pp. 878-878 OCR text aligned to scanned pages Relevance 330.0
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Thorite

Britannica 11th

THORITE, a rare mineral consisting of thorium silicate, crystallizing in the tetragonal system and isomorphous with zircon. The theoretical formula, ThSiCu, requires 81-5 % of thoria, but analyses show only 50-70%, there being also some uranium, cerium, &c. Th

Vol. 26, pp. 878-878 OCR text aligned to scanned pages Relevance 37.06
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