The correct answer is China clay.
China clay is a type of clay that is used in the ceramics industry. It is a white, fine-grained clay that is used to make porcelain, china, and other ceramic products. China clay is also used in the paper industry, as a filler in rubber and plastics, and in the manufacture of cosmetics and pharmaceuticals.
Bauxite is a mineral that is used to make aluminum. It is a reddish-brown ore that is found in bauxite deposits. Bauxite is the most important ore of aluminum, and it is used to make aluminum metal, aluminum oxide, and aluminum hydroxide.
Copper is a metal that is used in a variety of products, including electrical wiring, plumbing, and coins. Copper is a reddish-brown metal that is found in copper deposits. Copper is mined from the earth, and it is then refined to produce pure copper.
Gypsum is a mineral
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