penthrite

例句：

1. 1.The penthrite is a rare mineral that can be found in the mountains.
   这个矿物是稀有的，可以在山区找到。
2. 2. The penthrite has been used for centuries to treat various ailments.
   这种矿物被使用了几个世纪来治疗各种疾病。
3. 3. The penthrite is said to have healing properties that are not found in other minerals.
   据说这种矿物具有其他矿物质所没有的治愈属性。