roubaultite

例句：

1. 1. The mineral is a rare and valuable gemstone.
   这种矿物是一种稀有且珍贵的宝石。
2. 2. This mineral has been used in ancient civilizations for its healing properties.
   这种矿物在古代文明中被用于其治疗属性。
3. 3. The discovery of this mineral has sparked interest in alternative energy sources.
   这种矿物的发现激发了对替代能源的兴趣。