glaucophane schist

例句：

1. 1. The bluestone schist is a rare mineral that has been mined for centuries.
   蓝晶片片岩是一种稀有的矿物，已经被开采了几个世纪了。
2. 2.The bluestone schist is a valuable gemstone that can be used to make jewelry.
   蓝晶片片岩是一种珍贵的宝石，可以用来制作珠宝。
3. 3. The bluestone schist is found in many places around the world, including Africa, Asia, and Europe.
   蓝晶片片岩在世界许多地方都有发现，包括非洲、亚洲和欧洲。