crystalline rock

例句：

1. 1.The crystalline rock is a popular material for jewelry making.
   这种水晶岩是制作珠宝的热门材料。
2. 2. The crystalline rock has been found in many places around the world.
   这种水晶岩在世界许多地方都有发现。
3. 3.The crystalline rock is often used as a building material.
   这种水晶岩通常用作建筑材料。