Question

Which of the following statements is/ are correct?

1. The major constituent mineral of granite rock is quartz.

2. The major constituent mineral of sandstone rock is feldspar.

3. The major constituent mineral of limestone rock is dolomite.

Select the correct answer using the code given below:

(a) 1, 2 and 3 (b) 3 only (c) 1 and 2 (d) 2 and 3

Answer 1

(c) Limestone is composed of mineral calcite and aragonite which are different forms of calcium carbonate. Limestones may be formed from skeletons of corals and foraminifera. It is a sedimentary rock easily soluble in water.