This paper studies the distribution of tungsten in limonite through the research on the process mineralogy of refractory tungsten. The mineralization mechanism of the so-called "combinational tungsten" was studied.%通过对某难选含钨矿石的工艺矿物学研究,查明其钨主要分布于褐铁矿中,形成“结合钨”.同时探讨了此种含钨褐铁矿的成矿机理.
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