penninite

例句：

1. 1. The penninite is a rare mineral that has been discovered in the area.
   这个矿物是该地区发现的稀有矿物。
2. 2. The penninite is used in various industries as a source of energy and materials.
   这种矿物被用于各种行业，作为能源和材料的来源。
3. 3. The penninite is mined from deep underground and requires special equipment to extract it.
   这种矿物是从地下深处开采的，需要特殊的设备来提取它。