长石

例句：

1. 1.The granite slab is the foundation of our building.
   花岗岩石板是我们建筑的基础。
2. 2. The mineralogist analyzed the minerals in the rock and found that it was composed mainly offeldspar.
   矿物学家分析了岩石中的矿物，并发现它主要由长石组成。
3. 3. The crystals are arranged in a pattern that resembles a diamond cut into a long slab of feldspar.
   这些晶体以钻石切割的长石板图案排列。