一种商业名为“冰田玉”的宝石学特征

摘要

A jade variety called “Bingtian jade”was found during the inspection process.It is translucent in offwhite color with punctate black stripes.The "Bingtian jade" was checked by conventional gemological testing under infrared absorption spectrum and X fluorescence spectrometer.The result shows that the"Bingtian jade"has a rough surface and an internal granular structure with a refractive index of 1.54.Infrared absorption spectrum test result shows that the main component of"Bingtian jade"is phanerocrystal-line quartz.According to the existing national standard GB/T1 6552-2010《Gems Nomen-clature》and GB/T1 6553 - 2010 《Gems Authentication》,the "Bingtian jade" should be named as quartzitic jade.%在检测过程中发现一种名为“冰田玉”的玉石品种,外观呈现灰白色,半透明,带有点状黑色条带。对“冰田玉”进行常规宝石学测试,采用红外吸收光谱仪及 X 荧光能谱仪分析,结果表明：“冰田玉”的折射率为1.54,内部为粒状结构,表面粗糙。红外吸收光谱测试表明,“冰田玉”主要为显晶质石英。依据现行的国家标准 GB/T16552-2010《珠宝玉石名称》、GB/T16553-2010《珠宝玉石鉴定》,“冰田玉”应该定名为石英岩质玉。