primary tectonite

例句：

1. 1. The primary tectonite in the area is a type of sedimentary rock that has been formed over millions of years.
   该地区的初级构造岩是一种在数百万年中形成的沉积岩。
2. 2.The primary tectonite is composed mainly of quartz and feldspar, with minor amounts of other minerals.
   初级构造岩主要由石英和长石组成，含有少量其他矿物。
3. 3. The primary tectonite is often used as a building material due to its strength and durability.
   由于其强度和耐用性，初级构造岩常被用作建筑材料。