GENERAL KNOWLEDGE

Detailed explanation-1: -Monazite is an important ore for thorium, lanthanum, and cerium . It is often found in placer deposits. India, Madagascar, and South Africa have large deposits of monazite sands. The deposits in India are particularly rich in monazite.

Detailed explanation-2: -The principal thorium ore is monazite, a mixture of rare-earth and thorium phosphates containing up to 30% ThO2. Monazite sands are widely distributed throughout the world.

Detailed explanation-3: -Thorium is contained in the Monazite sand. This mineral is mined from the placer deposits.

Detailed explanation-4: -Monazite is an important source of thorium, cerium, and other rare elements. It is often mined as a byproduct of heavy mineral deposits. Monazite sand is used in construction and casting.

Detailed explanation-5: -The Monazite sands of Kerala is rich in thorium.