polianite

例句：

1. 1.The mineral is a rare and valuable resource in the region.
   这种矿物是该地区的一种稀有且有价值的资源。
2. 2. The discovery of this mineral has sparked interest in its potential applications.
   这种矿物的发现激发了对其潜在应用的兴趣。
3. 3.The research team focused on studying the properties of polianite to improve its extraction process.
   研究团队专注于研究polianite的性质，以改进其提取过程。