Answer:Corundum (Al₂O₃) is primarily used in abrasives. Therefore, products containing corundum include: - Sandpaper: Various grits of sandpaper use corundum as the abrasive material.- Grinding wheels: These are used in industrial applications for shaping and smoothing materials.- Polishing compounds: Corundum is used in polishing compounds for metal, stone, and other materials.- Cutting tools: Some cutting tools utilize corundum for their abrasive properties.- Certain gemstones: Ruby and sapphire are varieties of corundum. These are used in jewelry and other decorative application