quartzite crystalline state

例句：

1. 1. The quartzite is a type of rock that is commonly used in construction.
   石英岩是一种常见的建筑材料。
2. 2. Quartzite is a mineral that is found in many parts of the world.
   石英岩是世界上许多地方的矿物。
3. 3. The quartzite was mined from the nearby mountains for its beautiful color and texture.
   石英岩是从附近的山脉开采出来的，因为它的美丽颜色和纹理。