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自然铁是自然界中极为罕见矿物,诺登斯科德(Norden Ski(?)d)最早(1870年)在格陵兰西海岸狄斯哥(Disko)玄武岩中首次发现自然铁。我国迄今未见自然铁的发现和报道.笔者于1985年在小秦岭金矿金硐岔矿区9号含金石英脉第五阶段自然铁——金属硫化物,氧化物矿石中首次发现自然铁.与自然铁共生的矿物有自然铁外壳磁铁矿、微粒(0.1～0.2mm)它形方铅矿、黄铁矿淡棕色闪锌矿、浅色闪锌矿、密黄色闪锌矿、自形八面体磁铁
Natural iron is a very rare mineral in nature. Norden Ski (?) D first discovered natural iron in the Basalt of Disko in the west coast of Greenland (1870). The discovery and the report of natural iron have not been found so far in our country so far.In 1985, the natural iron was first discovered in the fifth stage of natural iron-metal sulfide and oxide ores in No.9 gold-bearing quartz vein in the small Qinling gold deposit. The minerals that coexist with natural iron are natural iron-shell magnetite, fine-grained (0.1-0.2 mm) galena, pyrite light brown sphalerite, light-colored sphalerite, dense yellow sphalerite, Octahedral magnet