Used as an abrasive in sandpapers and grinding wheels due to its hardness. Common in refractory materials for high-temperature applications like furnace linings. Serves as a catalyst support in chemical reactions. Found in cutting tools and wear-resistant components. Used in cosmetics and sunscreens for its reflective and absorbent properties. Applied as a coating to provide protective, scratch-resistant surfaces. Also utilized in electronics as an electrical insulator and in the production of aluminum metal.