紫硫镍矿(Ni,Fe)_3S_4往往是镍黄铁矿表生蚀变作用的产物,分布在氧化带以下到潜水面附近。由于它易于氧化、淋失,故不易形成有工业价值的矿床,但在气候干燥地区,如我国甘肃金川地区,氧化速度减慢,特别是化学风化作用微弱,表面氧化膜隔离硫化镍与空气的连系,从而得以保持成为矿床。 Violet sulfur nickel ore (Ni, Fe) _3S_4 is often the product of pegmatite alteration, distributed below the oxidation zone to the vicinity of the surface of the dive. Due to its easy oxidation and leaching, it is not easy to form deposits with industrial value. However, in arid regions such as Jinchuan, Gansu, China, the oxidation rate is slowed down, especially the chemical weathering is weak. The surface oxide film separates nickel sulfide from air Linked to be able to remain as a deposit.