摘要
通过运用X射线荧光光谱、紫外-可见吸收光谱、差热分析、红外光谱和拉曼光谱测试对少见的黄色蛇纹石玉进行成分和结构的分析,结果表明其主要成分为利蛇纹石。利蛇纹石的红外光谱具有由Si-O伸缩振动引起的956cm-1,1080cm-1,3650cm-1肩吸收的特征吸收峰。少见的黄色经紫外-可见吸收光谱测定得出363nm,384nm吸收峰,主要是由杂质离子Fe3+离子的d-d晶场跃迁引起。经过高温加热处理后,蛇纹石玉失去结构水转变为新的物相镁橄榄石,拉曼峰825m-1和856cm-1是镁橄榄石的特征谱峰。由热处理法制得的仿古效果,对于仿古玉的鉴定具有一定的研究意义和价值。
X-ray fluorescence （XRF） spectra, ultraviolet-visible light absorption spectra, differential thermal analyse （ DTA ）, infrared spectra and Raman spectra were used to analyze the component and structure of the rarely yellow serpentine jade. The results indicate that its main component is serpentine. IR spectra shows the absorption bands at 956cm^-1, 1080cm^-1 .3650cm^-1 belongs to stretching vibration of band Si - O. Tested by UV - Vis, its absorption is at 363 nm, 384nm so its color caused by the d - d electrons transition of Fe^3＋ . Heated by high temperature, the serpentine jade losing its water was transformed to forsterite whose Raman shifts are 825cm^-1 and 856cm^-1, The archaizing resuits through the heat treatment have a certain significance and value on the identification of antique jade.
出处
《激光与红外》
CAS
CSCD
北大核心
2009年第3期267-270,共4页
Laser & Infrared
关键词
黄色
蛇纹石玉
光谱特性
热处理
仿古
yellow
serpentine
spectra characteristic
heat treatment
archaize
