Still, the majority of the 15 analysed grains were identified (the number of grains is given in brackets); these were garnet (4), amphibole (2), tourmaline (2), rutile (2), zircon (1), ilmenite (1) and leucoxene
The Kollam coastline is rich in minerals like ilmenite, rutile, zircon, monazite, leucoxene
, sillimanite and garnet.
Kyanite, as a sources of aluminium, and Leucoxene
, as a substitute of rutile, Beach sand containing potentially valuable minerals were discovered in 1961 during a geological survey for radioactive minerals in cox;sbazar beach area .Atomic energy commission have been engaged for its exploration and exploitation of these minerals ,according to baec data there is 4.4 million tons of heavy minerals on 17 nos deposits area so far .
The rocks comprise plagioclase, perthite, quartz, and small amounts of biotite, opaque oxide, titanite, rare allanite, and secondary chlorite (after biotite), leucoxene
The market research company, Ceresana extensively analyzed the global market for titanium dioxide along the complete value-added chain already for the second time: from the feedstock ilmenite, leucoxene
, and rutile to the refined intermediates titanium slag and synthetic rutile up to the individual end products.
Secondary minerals in these rocks include chlorite, calcite, Iron hydroxide, opaque mineral, Leucoxene
is noted in many of the holes as are thin porphyries.
Monazite sampling exceeded 48%-50%, and valuable heavy minerals included zircon, leucoxene
Titanium dioxide is mined from either the natural ores of ilmenite and leucoxene
or rutile beach sand.
Extracted from bowels titanium ores are either dressed with production of selective ilmenite, rutile, anatase, and leucoxene
concentrates, containing up to 45-70 % [TiO.sub.2], or subjected to melting with output of titanium slag (up to 85 % [TiO.sub.2]) and cast iron, or processed into synthetic rutile.