摘要
对市场上出现多种颜色的俄罗斯水热法合成绿柱石,采用常规宝石学测试、傅里叶变换红外光谱、紫外-可见吸收光谱、X射线荧光光谱分析等测试方法对其进行初步研究。结果表明,水热法合成绿柱石的折射率(1.565~1.584)普遍比天然绿柱石的高,其内部特征主要有水波纹状、面纱状、钉状、微波纹状流体包裹体,偶尔可见黑色渣状包裹体、八面体晶体等。近红外吸收光谱以7 141cm^(-1)(Ⅰ型水),5 271cm^(-1)(Ⅱ型水)为特征,5 456,5 101cm^(-1)显示为Ⅰ型水的振动所致。合成绿色绿柱石的致色元素主要有Fe、Cr和V;合成蓝色绿柱石的致色元素主要有Fe和Ti;合成粉红色和红色绿柱石的致色元素主要有Fe、Cu和Mn。
In order to identify the hydrothermal synthetic beryls with various colours from Russia occurred in the recent market,agroup of beryl samples were collected and studied by using on conventional gemmological methods,Fourier transform infrared spectrometer,ultraviolet-visible spectrophotometer（UV-Vis）,and energy dispersive X-ray fluorescence（ED-XRF）.The results showed that the range of refractive index（1.565-1.584）of synthetic beryl samples is larger than that of natural beryl（1.575-1.581）.The synthetic beryl samples have fluid inclusions with various shapes of wave-like,veil-like,spike-like,black residue and octahedral crystal inclusions.Near-infrared absorption spectra showed the peaks of 7 141cm^（-1）（typeⅠwater）and 5 271cm^（-1）（typeⅡwater）,and the peaks of 5 456cm^（-1）and 5 101cm^（-1 ）which are the vibration of the type I water.The chromogenic elements of synthetic beryl samples are Fe,Cr,and V（for green ones）,Fe and Ti（for blue ones）,and Mn（for pink-red ones）.
作者
何立言
龙楚
英萸
陈能香
HE Liyan;LONG Chu;YING Yu;CHEN Nengxiang(Guangdong Provincial Gem ＆ Precious Metal Testing Center,Guangzhou 510080,China;Wuzhou Bofang Crystal Ltd.,Wuzhou 543000,China)
出处
《宝石和宝石学杂志》
CAS
2018年第3期9-17,共9页
Journal of Gems & Gemmology
