天然翡翠与注胶染色翡翠的鉴定研究

The study on the identification of the natural Jade and the gel-njected dyeing Jade

本研究选取两块翡翠样品进行鉴定,通过放大镜观察其表面及内部特征,静水称重法测算其密度,查尔斯滤镜观察其颜色变化,紫外荧光照射观察其荧光效应,以及紫外光谱分析来鉴定两块翡翠样品。翡翠样品A密度为3.31g/cm3位于天然翡翠的密度区间内,查尔斯滤镜下不变色,在紫外荧光照射下无荧光效应。翡翠样品B密度为2.55g/cm3低于天然翡翠的密度区间,查尔斯滤镜下绿色的部分变成红色,在紫外荧光照射下通体出现蓝白色荧光。在437nm的光波透射下,样品A的吸光度为1.245Abs,高于样品B的吸光度0.972Abs。在630nm、660nm及690nm的光波透射下,样品B的吸光度分别为1.194Abs、1.267Abs及1.182Abs,分别高于样品A的吸光度1.069Abs、1.148Abs及1.074Abs。样品A为天然翡翠,样品B为注胶染色翡翠。

In this paper,the two samples of Jades were selected for identification,through the methods of magnifying glass observation of their surfaces and internal characteristics,static water weighing method to measure their densities,Charles filter observation of their color changes,ultraviolet fluorescence irradiation observation of their fluorescence effects,and ultraviolet spectrum analysis.Under the transmission of 437nm light wave,the absorbance of sample A is 1.245Abs,which is higher than that of sample B of 0.972Abs.Under the transmission of 630nm,660nm and 690nm light waves,the absorbance of sample B of 1.194Abs,1.267Abs and 1.182Abs are higher than the absorbance of sample A of 1.069Abs and 1.148Abs and 1.074Abs,respectively.The sample A is a natural Jade.The sample B is a dyeing Jade with gel-injection.