当于1801年考察在大英博物馆的矿石时，Charles Hatchett被一个标签为columbite（钶铁矿）的样本激起了兴趣。他推测其包含一种新的金属，他是对的。
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columbite-tantalite 铌钽铁矿
columbite e 铌铁矿
ferro columbite 铌铁矿
columbite process 二次合成工艺
columbite precursor 预合成铌铁矿
fine tantalite-columbite 细粒钽铌矿
N a black mineral consisting of a niobium oxide of iron and manganese in orthorhombic crystalline form: occurs in coarse granite, often with tantalite, and is an ore of niobium. Formula: (Fe, Mn)(Nb)2O6 钶铁矿 (Also called niobite)
Experiment is done on the acid hydrolysis of titanium-columbite-tantalite ore difficult to decompose.
对难分解的钛钽铌矿的酸分解工艺进行了试验研究。
The measurement indicates that the optimized performance can be achieved by three-element composite columbite precursor methods.
性能测试结果表明，三组元复合先驱体法制成样品的性能最佳。
On the basis of detailed studies on columbite from the Suzhou granite, tantalite has been found for the first time in this granite.
本文在研究苏州花岗岩中铌铁矿的基础上，首次在该地区发现了钽铁矿。
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