The correct answer is: D. Feldspar
Feldspar is a group of minerals that make up about 60% of the Earth’s crust. It is the most abundant mineral in the Earth’s crust and is found in a variety of igneous, metamorphic, and sedimentary rocks. Feldspar is a major component of granite, sandstone, and shale. It is also used in the manufacture of glass, ceramics, and other products.
Tin is a metal that is used in the manufacture of cans, solder, and other products. Dolomite is a sedimentary rock that is composed of calcium magnesium carbonate. Slate is a metamorphic rock that is formed from shale.
Gurugram and Mahendragarh are located in the state of Haryana, India. These two districts are rich in feldspar deposits. The feldspar deposits in these districts are of high quality and are used in the manufacture of glass, ceramics, and other products.