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由于钽、铌和钨、锡在空间分布上有着密切联系,故人们对黑钨矿和锡石中钽、铌含量变化的研究特别重视,并常把含钽、铌的黑钨矿和锡石作为寻找隐伏钽、铌矿床的良好标志。为了阐明钽、铌和钨、锡之间的某些关系,我们对主要铌钽矿物、黑钨矿和锡石生成的物理化学条件及控制黑钨矿与锡石中钽、铌含量变化的主要因素进行了实验研究。实验方法以前曾有描述,本文从略。 有关铌钽矿物生成条件的实验资料文献中有所报导。И.В.亚历山大罗夫的实验
Due to the close relationship between tantalum, niobium, tungsten and tin in the spatial distribution, the study on the variations of tantalum and niobium contents in wolframite and cassiterite has been paid special attention, and tantalum and niobium-containing wolframite and cassiterite As a good sign to find hidden tantalum and niobium deposits. In order to elucidate some of the relationships between tantalum, niobium and tungsten, tin, the physico-chemical conditions that we generate for the major niobium-tantalum minerals, wolframite and cassiterite and the major changes that control tantalum and niobium in wolframite and cassiterite Factors of experimental study. Experimental methods have been described before, this article omitted. Experimental data on the conditions for the formation of niobium and tantalum minerals have been reported in the literature. И.В. Alexander Rove’s experiment