硫化铁矿的

Primary violarite has comparatively big particle size,and it is considered the easiest flotation copper-niekle-sulphide ore.

紫硫镍铁粒度较大,被认为是最易浮选的硫化铜镍物。

Pyrite is more abundant and cobaltiferous and occurs in heavy patches in the sulfide mass.

黄铁很多，并且含钴，在硫化物体中成稠密的斑。