cyanite

例句：

1. 1. The cyanite gemstone is highly prized for its deep blue color.
   这种青金石宝石因其深邃的蓝色而备受珍视。
2. 2.In ancient times, cyanite was used to make jewelry and ornaments.
   古代，青金石被用来制作珠宝和装饰品。
3. 3. Cyanite is a mineral that occurs naturally in small amounts in some rocks.
   青金石是一种自然存在于某些岩石中的矿物。