—、前言含铌、钽的矿物有90多种,而一般生产的有下面11种。铌铁矿 (Fe,Mn)Nb_2O_5 钽铁矿 (Fe,Mn)Ta_2O_5 烧绿石 (Na,Ca)_2Nb_2O_6(O,OH,F) 细晶石 (Na,Ca)_2Ta_2O_6(O,OH,F) 黑稀金矿 (Y,Cu,Ce,U,Th,Nb,Ta,Ti)_2O_6 褐乙铌矿 (Y,Er,Ce,Fe) (Nb,Ta,Ti)O_4 锡钽锰矿 (Ta,Nb,Sn,Mn,Fe)_20_4 铈铌钙钛矿 (Ca,Na,Ce) (Ti,Nb)_3 钡锶烧绿石 (Ba,Sr)_2 (Nb,Ti,Ta)_2O_6 -, Preface There are more than 90 kinds of minerals containing niobium and tantalum, and the following 11 kinds are generally produced. (Fe, Mn) Nb_2O_5 tantalite (Fe, Mn) Ta_2O_5 pyrochlore (Na, Ca) _2Nb_2O_6 (O, OH, Black thin gold ore (Y, Cu, Ce, U, Th, Nb, Ta, Ti) _2O_6 brown bainite (Y, Er, Ce, Fe) (Nb, Ta, Ti) O_4 tantalum manganese ore (Ta, Nb , Sn, Mn, Fe) _20_4 (Nb, Ti, Ta) _2O_6 (Nb, Ti, Nb) _3 Barium Strontium Pyrochlore (Ba, Sr)