pleonectite

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 pleonectite has a high calcium content.
   这种磷灰石含钙量高。
3. 3.The pleonectite is mined from the ground and then processed into various products.
   这种磷灰石从地下开采出来，然后加工成各种产品。