铌钽铁矿

铌钽铁矿类质同象系列的X射线粉晶分析讨论

A discussion on X-ray powder analysis of the isomorphous series of columbite-tantalite

铌钽铁矿KOH亚熔盐浸出过程Fe的转化行为

Conversion Behavior of Iron in Process of Niobium-Tantalum Ore Leached with KOH Sub-Molten Salt

对KOH亚熔盐浸出铌钽铁矿过程中Fe的转化行为进行了热力学计算分析。

The conversion behaviour of iron in the process of niobium-tantalum ore leached with KOH sub-molten salt was investigated by thermodynamic calculation and analysis .

主要有用矿物为铌钽铁矿，呈粒间嵌存于钠长石花岗岩基质中，占总量的95.04%。铌钽铁矿的嵌存关系与云母、长石最为密切，占93.99%，极少数与锆石连生。

The main useful minerals are columbium-tantalum-iron ores inlaid within albite granite matrix in granular , accounting for 95.04 % of total amount .

海南蓬莱刚玉巨晶中铌（钽）铁矿包裹体及其意义

Tantalic columbite inclusions in corundum Megacrysts in penglai , Hainan

讨论了铌（钽）铁矿的形成与刚玉巨晶的关系，认为刚玉巨晶的形成可能和岩浆混合或上地幔流体交代作用有关。

According to the composition and other evidences , it is concluded that the formation of corundum megacrysts may be related to mixing of magmas or alteration of fluids in the upper mantle .

一种坚硬有光泽的灰色金属元素，抗腐蚀性极强，见于铌铁矿、褐钇铌矿和钽铁矿中。

A hard gray lustrous metallic element that is highly corrosion-resistant ; occurs in niobite and fergusonite and tantalite .