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自然砷是一种比较稀少的矿物。纯净的自然砷则更为罕见。去年,我们在对江西大吉山钨矿床的有关专题研究中,经电子探针分析首次发现该矿床中有自然砷存在。它不仅粒度粗大(最大者可达1.5cm)而且纯度很高。本文探讨的自然砷产于含钨石英脉内的碳酸盐岩脉中。碳酸盐岩脉主要由粒状方解石所组成。自然砷是矿化
Natural arsenic is a relatively rare mineral. Pure natural arsenic is even more rare. Last year, we found for the first time in a special study on the Dajishan tungsten deposit in Jiangxi Province that there is natural arsenic in the deposit by electron probe analysis. It is not only coarse size (the largest up to 1.5cm) and high purity. The natural arsenic discussed in this paper is produced in carbonate veins of tungsten-bearing quartz veins. Carbonate veins are mainly composed of granular calcite. Natural arsenic is mineralized