Which mineral is used as a raw material in the soda ash industry in Gujarat?

Limestone is a sedimentary rock that is composed of calcium carbonate. It is used to produce cement, lime, and other building materials.

Gypsum is a mineral that is composed of calcium sulfate. It is used to produce plaster, drywall, and other building materials.

Salt is a mineral that is composed of sodium chloride. It is found in seawater and in salt deposits on land. Salt is used in food, as a preservative, and in many industrial processes.