针镍矿是镍的硫化物矿物,成分NiS,含Ni量为5%。三方晶系。晶体呈针状,集合体为纤维放射状、毛发状,偶尔呈粒状。浅黄铜色,表面常因氧化而呈现锖色。条痕绿黑色。金属光泽。摩氏硬度为3~4。密度为4.5~5。 针镍矿主要为热液成因矿物,见于某些钴镍热液矿床中,有时见于铜镍硫化物岩浆矿床中,但它仍然是后期热液过程的产物。此外,在沉积成因镍矿床中亦常有产出。是炼镍的重要矿物原料。 针镍矿又称针硫镍矿。我国的甘肃有产出。
n. millerite
misc. capillary pyrite ; capillose
洁西矿结的另一特点,是它含有相当数量的针镍矿及班铜矿。
The jussi ore shoot is exceptional also in that it contains considerable amounts of millerite and bornite.
一种硬而软的元素可锻造抗腐蚀用于合金中见于硫镍铁矿砷钴矿硅镁镍矿针镍矿中。
A hard malleable ductile silvery element that is resistant to corrosion used in alloys occurs in pentlandite and smaltite and garnierite and millerite.
证明针镍矿的阳极溶解是由固相内扩散传质和电荷传递步骤混合控制的准可逆电极过程;
The dissolution was confirmed to be a quasi-reversible process, which was controlled by solid-state diffusion and charge transfer.
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