sylvinite

例句：

1. 1.The sylvinite is a rare mineral found in the Earth's crust.
   硅钒矿是一种在地球地壳中罕见的矿物。
2. 2. Sylvinite is used in the production of high-quality steel.
   硅钒矿用于生产高质量的钢材。
3. 3. The sylvinite mine is located in the remote region of the mountain range.
   硅钒矿矿位于山区的偏远地区。