Multiple choice

In reference to Monazite sands, following minerals is/are present:

1.         Uranium 2.         Thorium 3.         Cerium 4.         Lanthanum

Which of the following is/are correct?

  1. Only 1

  2. Only 2

  3. Only 3

  4. 1, 2, 3 and 4
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Monazite is a reddish-brown phosphate mineral containing rare earth metals. It occurs usually in small isolated crystals. It is enriched in lanthanum and cerium. Monazite is radioactive due to the presence of uranium. 

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