Question

Which mineral is found in monazite sands?

Answer 1

Due to the alpha decay of thorium and uranium, monazite contains a significant amount of helium, which can be extracted by heating. Monazite is an important ore forthorium, lanthanum, and cerium. It is often found in placer deposits. India, Madagascar, and South Africa have large deposits of monazite sands.
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Answer 2

it contain thorium and cerium