硫化铁矿

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

紫镍矿原生粒度较大,被认为是最易浮选的铜镍矿。

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

矿很多，并且含钴，在体中成稠密的斑。

While the reduction of the initial oxidized products on pyrite surface such as polysulphide and free sulphur can improve its hydrophilicity.

同时，矿表面初始氧产如单质和多被还原，亲水性增强。