schroetterite

例句：

1. 1. This mineral is commonly found in river sediments and can be used as a source of iron.
   这种矿物通常存在于河流沉积物中，可以作为铁的来源。
2. 2.The scheroetterite mine is one of the largest in the world, producing significant amounts of iron ore.
   这个铁矿是世界上最大的之一，生产大量的铁矿石。
3. 3.Due to its high iron content, scheroetterite is often used in industrial applications where it can improve the strength and durability of materials.
   由于其高含铁量，铁矾石常用于工业应用中，可以提高材料强度和耐用性。