calc-gneiss

例句：

1. 1.The calc-gneiss is a type of rock that is often used for construction.
   片麻岩是一种常用于建筑的岩石类型。
2. 2. The calc-gneiss is a very durable material that can withstand heavy loads.
   片麻岩是一种非常耐用的材料，能够承受重载。
3. 3. The calc-gneiss is a mineral that is found in many different rocks and minerals.
   片麻岩是一种矿物，存在于许多不同的岩石和矿物中。