Used as an abrasive in sandpapers and grinding wheels due to its hardness. Commonly found in cutting tools and polishing compounds. Serves as a catalyst support in chemical reactions. Applied as a protective coating on surfaces to resist wear and corrosion. Used in electronics as an electrical insulator in integrated circuits. Found in medical applications such as in prosthetics and dental implants for its biocompatibility and durability. Also utilized in the production of glass and ceramics to improve strength and thermal resistance.