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△玉米、向日葵、冷杉、山毛榉等几种植物的根具有吸收离子态黄金的本领。如果这些植物生长在富含离子态黄金的土壤中,那么对它们的灰分进行分析,其中就会有黄金。△一种五月金龟子确实含“金”。这是因为金龟子吃了含金的树叶。如果让金龟子吃不含黄金的树叶,几个月后,它的金灿灿盔甲就黯然失色了。△在西南太平洋新喀里多尼亚岛上发现了十二种过量积累镍的植物,其中有一种九米高的树,树叶中含镍量达1-2%。△钽铌分离长期以来就是稀有金属冶金的难题,而紫苜蓿正是分离钽铌的“能手”。它的根能分
△ corn, sunflower, fir, beech and other plant roots have the ability to absorb ionic gold. If these plants grow in soils rich in ionic gold, their ash will be analyzed for gold. △ a May chafer does contain “gold.” This is because the chafer has eaten golden leaves. A few months later, its golden armor was eclipsed if the chafer was eaten without golden leaves. △ Twelve species of nickel that accumulate excessively were found on the island of New Caledonia in the Southwest Pacific, among them a nine-meter tall tree containing 1-2% nickel in the leaves. △ tantalum niobium separation has long been a problem of rare metal metallurgy, and purple alfalfa is the separation of tantalum and niobium “experts.” Its roots can be divided