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画眉坳钨矿是赣南大型钨矿之一,历史悠久,矿石中有伴生元素30余种。其中硫化物中的银和金,前人曾认为是以类质同象形式存在。经我们用电子探针分析,已确认银、金是以显微包体的独立矿物形式存在于硫化物中,且单矿物中银和金的含量经原子吸收光谱分析,其中银的含量远远超过了工业利用指标。初略计算,该矿带中四个中段的银储量(金属量)已达××吨。这对提高矿石的综合利用和扩大储量有较大的实际意义。
The thrush Au deposit is one of the large-scale tungsten mines in southern Jiangxi Province, with a long history. There are more than 30 associated elements in the ore. One of the sulfide in silver and gold, previously thought to exist in the form of isomorphism. By our use of electronic probe analysis, it has been confirmed that silver and gold are present as sulfide minerals in the form of microscopic inclusions and that the content of silver and gold in the single mineral is analyzed by atomic absorption spectroscopy, in which the content of silver far exceeds Industrial utilization indicators. At first glance, the silver reserves (metal content) in the middle four of the ore belt reached ×× ton. This is to improve the comprehensive utilization of ore and expand reserves have more practical significance.