The correct answer is d) Thiruvananthapuram.
China clay (kaolinite) is a clay mineral that is used in ceramics, porcelain, and other products. It is primarily found in the state of Kerala, India. The main deposits of china clay in Kerala are located in the districts of Thiruvananthapuram, Kollam, and Pathanamthitta.
China clay is a white, soft, earthy mineral that is composed of aluminum silicate. It is formed by the weathering of feldspar and other aluminum-rich minerals. China clay is a non-plastic clay, which means that it does not stick together when wet. It is also a refractory clay, which means that it can withstand high temperatures without melting.
China clay is used in a variety of products, including ceramics, porcelain, paper, rubber, and cosmetics. It is also used in the manufacture of refractories, which are materials that are used to line furnaces and other high-temperature equipment.
The main deposits of china clay in Kerala are located in the districts of Thiruvananthapuram, Kollam, and Pathanamthitta. The china clay in these deposits is of high quality and is used in the manufacture of a variety of products.
The china clay industry in Kerala is an important part of the state’s economy. The industry employs thousands of people and contributes significantly to the state’s exports.