X-ray diffraction analysis indicates that the main minerals of the 5 bauxite sample are diaspore, hematite, chlorite, gibbsite, anatase, rutile, goethite with minor kaolinite.

• 衍射分析显示5个铝土矿样品矿物组成主要为硬水铝石、赤铁矿、绿泥石、三水铝石、锐钛矿、金红石、针铁矿以及少量的高岭石。