"corundum" in Chinese (Simplified)

• 刚玉

Definition

刚玉是一种非常坚硬的矿物，由氧化铝组成，常用作磨料。它透明且带颜色时，可以变成红宝石和蓝宝石等宝石。

Usage Notes (Chinese (Simplified))

“刚玉”是矿物学和材料科学中的专业术语，在日常生活中很少用到。珠宝领域常用红宝石和蓝宝石来称呼其宝石品种。

Examples

Corundum is one of the hardest natural minerals.

**刚玉**是最坚硬的天然矿物之一。

The gemstone ruby is actually red corundum.

红宝石实际上是红色的**刚玉**。

Corundum is used in some types of sandpaper.

**刚玉**被用于某些类型的砂纸。

Did you know sapphires are just blue corundum?

你知道蓝宝石其实就是蓝色的**刚玉**吗？

Industrial drills often use synthetic corundum for cutting.

工业钻头常常使用人造**刚玉**来切割。

Collectors sometimes look for rare colors of corundum besides rubies and sapphires.

收藏家有时会寻找除红宝石和蓝宝石以外的稀有颜色的**刚玉**。