水镁石的宝石学和矿物学特征研究

Research on Gemological and Mineralogical Characteristics of Brucite

随着珠宝玉器市场的繁荣发展,常见水镁石仿和田玉和寿山石等高档玉石的现象。通过常规宝石学特征、放大检查、红外光谱、拉曼光谱、X射线荧光能谱和X射线粉晶衍射测试手段,对水镁石的宝石学和矿物学特征进行了测试和分析。结果表明,水镁石的密度为2.411 g/cm^3,折射率为1.57(点测),粗粒状结构。红外光谱具水镁石的特征红外吸收峰、同时可见碳酸盐弱的峰,与X射线荧光能谱定性元素测试结果一致。拉曼光谱与X粉晶衍射测试结果一致,都显示水镁石样品的主要矿物为水镁石。

With the development of jewelry and jade market,it is common that the brucite is processed to imitate Hetian jade and Shoushan jade.The gemmological and mineralogical characteristics of brucite were tested and analyzed by means of conventional gemmological characteristics,magnification examination,infrared spectrum,Raman spectrum,X-ray fluorescence energy spectrum,and X-ray powder diffraction.The results showed that the density of brucite was 2.411 g/cm^3,the refractive index was 1.57(point measurement),and the structure was coarse-grained.The infrared spectrum had the characteristic infrared absorption peak of brucite and the weak carbonate peak,which was accordant with the qualitative element test results of X-ray fluorescence spectrum.The results of Raman spectrum and X-ray powder diffraction showed that the main mineral of sample was brucite.