vallerite

例句：

1. 1.The mineral is a valuable resource for the mining industry.
   这种矿物是采矿业的宝贵资源。
2. 2. Vallerite is a rare mineral that has been found in only a few places on Earth.
   Vallerite是一种稀有矿物，仅在地球上的少数地方被发现。
3. 3. Due to its high value, vallerite is often used as a decorative stone in jewelry.
   由于其高价值，Vallerite常被用作珠宝中的装饰石。