sulphate of potash magnesia

例句：

1. 1.The mineral is used in the production of fertilizers and other chemicals.
   这种矿物用于生产肥料和其他化学品。
2. 2. It's a common mineral found in many soils around the world.
   它是世界上许多土壤中常见的矿物。
3. 3.The sulphate of potash magnesia is a valuable resource for agriculture.
   硫酸钾镁石是农业宝贵的资源。