硫化铁矿的

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

黄铁矿很多，并且含钴，在硫化中成稠密的斑。

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

紫硫镍铁矿原生粒度较大,被认为是最易选的硫化铜镍矿。