稀土氟碳酸盐矿物的拉曼光谱研究

A Raman Spectral Studies of Rare earth(REE) Fluoro carbonate Minerals

研究了氟碳钡铈矿Ｃｅ２Ｂａ［ＣＯ３］３Ｆ２、氟碳钙铈矿Ｃｅ２Ｃａ［ＣＯ３］３Ｆ２和氟碳铈矿Ｃｅ［ＣＯ３］２Ｆ等矿物的拉曼光谱特征。结果表明，钡稀土氟碳酸盐矿物（氟碳钡铈矿、氟碳铈钡矿、黄河矿）的Ｒａｍａｎ光谱特点是，ν１和ν２为单峰值，ν３和ν４为双峰值。钙稀土氟碳酸盐矿物（氟碳钙铈矿）的拉曼光谱带中ν１和ν４为双峰值，ν２和ν３为单峰值。稀土氟碳酸盐矿物（氟碳铈矿）的Ｒａｍａｎ光谱的特点是，ν１、ν２和ν４为单峰值，ν３为双峰值。

The Raman spectra of REE fluoro carbonate minerals were studies by a type of RIT 30 laser Raman spectrometer.On the basis of Raman spectral properties,REE fluoro carbonate minerals can be divided into three groups:Ba REE fluoro carbonate mineral,Ca REE fluoro carbonate mineral and REE fluoro carbonate mineral.Obviously,a differential kind of mineral is different in the vibration frequency of the Raman spectra.They are as follows:Cordylite ν 1 1 088,ν 2 967,ν 3 1 538,ν 4 720,628; Hauheite ν 1 1 089,ν 3 1 525,1 596,ν 4 720,649 ;Cerbaite ν 1 1 088,ν 2 911,ν 3 1 516,ν 4 718,625; Parisite ν 1 1 095,1 075,ν 2 915,ν 3 1 461,ν 4 744,732; Bastnesite ν 1 1 098,ν 2 835,ν 3 1 476,1 447,ν 4 732.