Noun:

கசித்தரைற்று,

cassiterite's Usage Examples:

In Cornwall and Devon it is associated with cassiterite in the tinlodes, but is also found in the copper-lodes: well crystallized specimens have been obtained from the neighbourhood of Tavistock, Redruth and St Agnes.

Zirconia can be obtained crystalline, in a form isomorphous with cassiterite and rutile, by fusing the amorphous modification with borax, and dissolving out with sulphuric acid.

The tin occurs in the form of cassiterite, and is found chiefly in or near the crystalline rocks, especially the granite.

, and in Cornwall and Devon, where it is abundant, with cassiterite.

The granite, which is intruded through the Eocene beds, is associated with a pegmatite containing tourmaline and cassiterite.

Mining for alluvial cassiterite continued right up to the 20th century but was at its maximum in the middle ages.

Rutile assumes tetragonal forms isomorphous with cassiterite, SnO 2 (and also zircon, ZrSiO 4); anatase is also tetragonal, and brookite or thorhombic.

Cassiterite >>The granite, which is intruded through the Eocene beds, is associated with a pegmatite containing tourmaline and cassiterite.

Alluvial tin mining is carried on successfully in the neighbourhood of Embadaan, cassiterite to the value of £46,000 being exported in 1905-1907.

Of minerals containing this element mention may be made of cassiterite or tinstone, Sn02, tin pyrites, Cu 4 SnS 4 + (Fe,Zn) 2 SnS 4; the metal also occurs in some epidotes, and in company with columbium, tantalum and other metals.

It is an amorphous white powder; but it may also be obtained in crystals isomorphous with cassiterite by heating the amorphous form with borax to a very high temperature.

Synonyms:

tin, mineral, atomic number 50, Sn,

Antonyms:

organic,