Cách sử dụng
Corundum is a type of mineral that is very hard and is used to make things like abrasives and gemstones. It is often used in industries where a tough material is needed, such as in production of cutting tools, mechanical hardware or electronics. It is also used in jewelry to create beautiful, durable gemstones like sapphires and rubies. Corundum is a versatile and important mineral that finds its application in various fields.