湖北竹溪县某铌矿矿物组成及Nb的赋存状态  

Research on Mineral Composition and Nb Occurrence State of a Niobium Ore in Zhuxi,Hubei

作　　者：魏均启[1] 鲁力[1] 吴健[1] 边智虹 

机构地区：[1]湖北省地质实验测试中心,国土资源部稀土稀有稀散矿产实验技术重点实验室,湖北武汉430034

出　　处：《矿产综合利用》2016年第2期74-77,共4页Multipurpose Utilization of Mineral Resources

摘　　要：通过显微镜观察、X射线衍射分析(XRD)、工艺矿物学参数自动定量分析(MLA)等研究方法,查明了湖北竹溪县夜壶寨-柳树村铌矿含矿岩石为一套喷出-次火山相富钠质粗面岩。夜壶寨矿区矿石含Nb2O5为0.0875%,Nb主要为铌易解石、易解石的形式存在,次为铌铁矿、钛铁矿、金红石;柳树村矿区矿石含Nb2O5为0.0815%,铌主要为铌锰矿、烧绿石、榍石的形式存在,次为易解石、钛铁矿、金红石;两个矿区铌矿物粒度均十分细微。研究成果为竹溪地区碱性火山岩研究及Nb资源的开发利用提供了重要的参考依据。Through research methods as Identification by polarizing microscope,X-ray diffraction analysis（ XRD）,Automatic quantitative analysis of process mineralogy parameters（ MLA）,etc.,it was found out that the ore bearing rock is sodic trachyte as ejection phase and sub volcanic phase in Yehuzhai-Liushucun,Zhuxi,Hubei. The Nb2O5 content of ore was 0. 0875%,Nb is Primary in the form of niobium aeschynite,aeschynite,secondary in the form of niobium ore,ilmenite,rutile in Yehuzhai area. The Nb2O5 content of ore was 0. 0875%,Nb is Primary in the form of niobium aeschynite,aeschynite,secondary in the form of columbite,ilmenite,rutile in Yehuzhai area. The Nb2O5 content of ore was 0. 0815%,Nb is Primary in the form of mangancolumbite,pyrochlore,sphene,secondary in the form of priorite,ilmenite,rutile in Liushucun area. The niobium in this two areas is fine granularity. The research results provided an important reference basis for the research of alkaline volcanic rocks and the development and utilization of Nb in Zhuxi area.

关 键 词：竹溪地区 粗面岩 铌矿物 赋存状态 

分 类 号：TD983[矿业工程—选矿]