名 称：铁、铌、稀土矿石

矿物成分：矿石矿物组成复杂，铁矿物主要有磁铁矿，赤铁矿、镜铁矿等；稀土矿物主要有独居石、氟碳铈矿，氟碳铈钡矿等；铌矿物主要有铌铁金红石、铌铁矿、烧绿石、易解石等。脉石矿物主要有白云石、石英、黑云母及钠长石，其次有萤石、钠辉石，钠闪石、重晶石、磷灰石等。

成因类型：海相喷流沉积型

成矿时代：中元古代长城纪（长城系白云鄂博群）

主要用途：提取铁、铌、轻稀土的主要矿石。铁、铌、轻稀土在冶金、石油化工、原子能、电气工业等方面用途广泛。

采集地点：内蒙古白云鄂博铁铌稀土矿区

Name：Fe-Nb-REE Ore

Mineralogy：Ore mineralogy is complicated. Iron minerals are dominated by magnetite, hematite and specularite. REE minerals include mostly monazite bastnaesite, cebaite, etc. niobium minerals include ilmenorutile, niobite, pyrochlore, aeschynite, etc. Gangue minerals include dolomite, quartz, biotite and albite, with subordinate fluorite, acmite, crocidolite, barite, apatite, etc.

Ore genesis：Submarine exhalation.

Age：Mesoproterozoic Changcheng System (Bayan Obo Group)

Usage：Source for extracting iron, niobium and light REE. These elements are widely used in metallurgy, chemical, atomic and electric industries.

Sample site：Bayan Obo, Inner Mongolia.