Laser Raman spectroscopy of typical rare-earth fluoro-carbonate minerals in Bayan Obo REE-Fe-Nb deposit and identification of rare-earth daughter minerals hosted in fluid inclusions.
白云鄂博REE—Fe—Nb矿床稀土氟碳酸盐矿物激光拉曼光谱特征及流体包裹体内稀土子矿物的鉴定

Raman speetroscopy of typical rare-earth fluoro-carbonate minerals like cebaite, parisite and bastnaesite in Bayan Obo giant REE-Fe-Nb deposit shows vibration frequency of CO32- and F-. Raman speetroscopy of rare-earth daughter minerals in fluid inclusions shows that these minerals might be bastnaesite and cebaite, and presents that primary ore-forming fluids are enriched in REE. Rare-earth daughter minerals in multiphase inclusions in mineralizing veins were crystallized from trapped fluids, and are real daughter minerals. Laser Raman spectrometry can be used as a reliable tool to identify unknown daughter mineral hosted in fluid inclusions combined with mineral shapes and SEM-EDS analyses.