峨口铁矿矿石中的硫来源于硫化物（黄铁矿、磁黄铁矿、黄铜矿、白铁矿），呈星点状，散布于矿石中或呈脉体平行或穿切硅铁建造条带。
The sulphur in E'Kou Ironstone comes from sulphide ( pyrite , pyrrhotite , chalcopyrite , binarite ) and sporadically distributes in the ore or veined parallels / intercalates banded ferrosilicon formations .
白铁矿