Aluminum oxide, also known as alumina, is a chemical compound made from aluminum and oxygen. It appears as a white, powdery substance and is commonly found in nature as the mineral bauxite. This compound is important in various industries, including the production of aluminum metal and as an abrasive material due to its hardness. In addition to its industrial uses, aluminum oxide is also utilized in everyday products like toothpaste and cosmetics for its gentle abrasive properties. It is often used in the manufacturing of ceramics and glass, making it a versatile material in both commercial and household applications.