黄铁矿团块

例句：

1. 1. The mine is rich in pyrite nodules, which are highly valued for their mineral content.
   这个矿富含黄铁矿团块，因其矿物含量而受到高度重视。
2. 2. The pyrite nodules are mined from the ground and then processed into various products.
   黄铁矿团块从地下开采出来后，经过加工制成各种产品。
3. 3. The pyrite nodules are used as a source of iron ore in the mining industry.
   黄铁矿团块是采矿业中铁矿石的来源之一。