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1961年,达拉松选矿厂职工在振动流槽上的重介质中,已开始选矿的初步研究,1964年,与国立稀有金属科学研究所伊尔庫茨克分所共同进行了半工业試驗。試驗的矿石,主要为花崗岩組成的深灰色岩石和石英-碳酸盐类矿化的脉石矿物,矿石组成包括石英、长石、碳酸盐、角閃石、云母、电气石和榍石、磷灰石、锆石等伴生矿物。試样的金属矿物約占总矿物含量的6.5％,主要矿物为黄鉄矿和毒砂,其次为黄銅矿、方鉛矿、閃鋅矿和黝銅矿。
In 1961, workers at the Dallasone beneficiation plant had started preliminary studies of beneficiation in vibratory runners in heavy media. In 1964, they conducted a semi-industrial test jointly with the Irkutsk branch of the National Institute of Rare-Earth Metal Research. The ores tested are mainly dark gray rocks composed of granites and quartz-carbonate mineralized gangue minerals, including quartz, feldspar, carbonate, amphibole, mica, tourmaline and limonium, apatite , Zircon and other associated minerals. The metal minerals of the sample account for about 6.5% of the total mineral content. The main minerals are yellow ore and arsenopyrite, followed by chalcopyrite, galena, sphalerite and tetrahedrite.