spilite

例句：

1. 1. The mineral is used in the production of glass and ceramics.
   这种矿物用于生产玻璃和陶瓷。
2. 2. The stone has a hardness that makes it ideal for polishing.
   这种石头的硬度使其成为抛光的理想材料。
3. 3. The spilite is mined from the earth's crust and is used as a building material.
   这种硅石从地球的地壳中开采出来，用作建筑材料。