The correct answer is: B. Only 2
Haryana is rich in minerals, which are largely used in construction industry. These minerals include limestone, dolomite, gypsum, quartzite, and fireclay. However, Haryana is not rich in high grade iron-ore. The iron-ore deposits in Haryana are of low grade and are not economically viable to mine.
Limestone is a sedimentary rock composed of calcium carbonate. It is used in the construction industry as a building material, as a flux in steelmaking, and in the manufacture of cement. Dolomite is a sedimentary rock composed of calcium magnesium carbonate. It is used in the construction industry as a building material, as a flux in steelmaking, and in the manufacture of cement. Gypsum is a sedimentary rock composed of calcium sulfate dihydrate. It is used in the construction industry as a plaster, as a fertilizer, and in the manufacture of drywall. Quartzite is a metamorphic rock composed of quartz. It is used in the construction industry as a building material, as an abrasive, and in the manufacture of glass. Fireclay is a clay that is resistant to high temperatures. It is used in the manufacture of bricks, pottery, and porcelain.