pachnolite

例句：

1. 1. The pachnolite is a rare mineral that has been found in the area.
   这种矿物是稀有的，已经在这个地区被发现。
2. 2. The pachnolite was used as a building material in ancient times.
   这种矿物在古代被用作建筑材料。
3. 3. The pachnolite was mined for its unique properties and sold for high prices.
   这种矿物因其独特的性质而被开采，并以高价出售。