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Related to Thorite: thorium, uraninite, monazite


ThSiO4 A brownish-yellow to brownish-black and black radioactive mineral that is tetragonal in crystallization; hardness is about 4.5 on Mohs scale, and specific gravity is 4.3-5.4.



a mineral of the class of nesosilicates, ThSiO4. The varieties of thorite are orangite (a transparent orange variety), uranothorite (up to 10 percent UO2), thorogummite (up to 15 percent H2O), ferrithorite (up to 13 percent Fe2O3), calciothorite, and auerlite (a phosphorus-containing thorite).

In addition, thorite contains aluminum, titanium, manganese, and rare earths as admixtures. Thorite crystallizes in a tetragonal system, forming prismatic or columnar crystals. It is usually encountered in the form of granular aggregates. Many thorites are metamict minerals. Thorite is black, red-brown, or orange. Unaltered uranothorite is transparent and olive green. The hardness of thorite on Mohs’ scale is 4.5–5, and its density is 4,100–6,700 kg/m3.

Thorite is highly radioactive. It is found as an accessory mineral in granites, some alkaline rocks, pegmatites, and hydrothermal veins. Large accumulations of thorite are usually not formed; the mineral is obtained from placers as a by-product with zircon andcassiterite.

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A new range of HPC Oil-X Evolution compressed air filters is now available from compressed air and fluid systems specialists, Thorite.
A single irregular, opaque orange-brown crystal of thorite has been found.
Traditional boiled sweets manufacturer Joseph Dobson has more than doubled its output, while reducing its energy costs, following the installation of two new air compressors from Thorite.
Thorite has promoted Wayne Tolson, (below) from his position as service engineer to become a key member of its capital equipment sales team.
Very rarely, thorite is found as subhedral crystals in aggregates to several millimeters, black to brown with a greasy luster and an imperfect cleavage along {110}.
PNEUMATIC products and process systems distributor Thorite, which has a branch at Barge Street in Huddersfield, has recruited six apprentices in a wide range of roles.
Thorite House, Laisterdyke, Bradford, BD4 8BZ Tel: 01274 657035 Fax: 01274 668296 Email: richard.