摘要
采用X射线荧光(XRF)、X射线衍射(XRD)、紫外可见光(UV-VIS)和拉曼(Raman)等分析方法,对典型绿辉石玉样品进行了光谱测试和分析。结果表明,绿辉石玉中具有较高含量的Ca2+;主要矿物成分为绿辉石,其晶体结构与硬玉相近,但晶胞参数有所差异;铁元素含量较高,主要以Fe2+形式存在;特征拉曼位移位于683和1018cm-1附近,分别是由[SiO4]4-四面体中Si-O-Si的对称弯曲振动和Si-O对称伸缩振动所致。因此,绿辉石玉区别于以硬玉为主要矿物的翡翠。
The spectral characteristics of omphacite jade are analyzed by X-ray fluorescence（XRF）,X-ray diffraction（XRD）,ultraviolet visible（UV-VIS）and Raman spectroscopy.The result indicates that the content of Ca^2＋ in omphacite jade sample is high.The result also shows that omphacite jade is mainly composed of omphacite,which has the similar crystal structure to jadeite,but with the different unit cell parameter.The iron,which mainly exists as Fe^2＋,is of high content.Raman shifts between 683 cm^-1 and 1018 cm^-1 are due to symmetrical bend vibration of Si-O-Si bond and symmetrical retraction vibration within [SiO4]4-tetrahedral respectively.Therefore,omphacite jade is different from jadeite.
出处
《激光与光电子学进展》
CSCD
北大核心
2010年第10期103-107,共5页
Laser & Optoelectronics Progress
关键词
材料学
绿辉石玉
光谱学
翡翠
material
omphacite jade
spectroscopy
jadeite
