MINERAL AND ENERGY RESOURCES IN INDIA
MINERALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Oil
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Uranium
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Thorium
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Coal
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Detailed explanation-1: -Thorium is contained in the Monazite sand. This mineral is mined from the placer deposits.
Detailed explanation-2: -The thorium mineral sand is contained in the monazite sand.
Detailed explanation-3: -Soil commonly contains an average of about six parts of thorium per million parts (ppm) of soil. Thorium occurs in the minerals thorite, thorianite, orangite, and yttrocrasite, and in monazite sand. Rocks in some underground mines may also contain thorium in a more concentrated form.
Detailed explanation-4: -The principal thorium-bearing minerals in these deposits are uraninite, thorite, brannerite, uranothorite, monazite, and some other REE-, Th-, and U-bearing accessory minerals.
Detailed explanation-5: -Monazite is a cerium, yttrium, lanthanum, thorium phosphate which contains thorium from 2% to 14% and uranium from about 0.05% to 0.3% [12-14].