钠长石玉与仿制品石英岩玉的鉴别特征  

The identification characteristics of albite jade and imitation quartzite jade

作　　者：孙冰 陈铭 毕亚楠 刘金海 张鹏[2] 张存 SUN Bing;CHEN Ming;BI Yanan;LIU Jinhai;ZHANG Peng;ZHANG Cun(National Gold&Diamond Testing Center,Jinan 250014,China;School of Materials Science and Engineering,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China)

机构地区：[1]国家黄金钻石制品质量检验检测中心,山东济南250014 [2]齐鲁工业大学(山东省科学院)材料科学与工程学院,山东济南250353

出　　处：《超硬材料工程》2023年第1期61-65,共5页Superhard Material Engineering

摘　　要：钠长石玉和石英岩玉在外观上极为相似,因此常规检测手段难以区分。通过宝石学常规仪器测试并结合红外光谱和X射线荧光光谱对钠长石玉及其常见仿制品石英岩玉进行了系统研究。结果表明:钠长石玉和石英岩玉在折射率、相对密度等宝石学物理参数方面较为相近。红外吸收光谱揭示两者具有明显不同的吸收峰,X荧光光谱分析表明石英岩玉主要元素为O和Si,SiO_(2)含量高达99%,而钠长石玉主要元素为O、Si、Al、Na,SiO_(2)含量达66.9%,Al_(2)O_(3)含量为20.3%、Na_(2)O含量为12.2%。研究可为鉴定钠长石玉和石英岩玉提供必要指示。Albite jade and quartzite jade are extremely similar in appearance,so it is difficult to distinguish them by conventional analysis methods.A systematic study of albite jade and its common imitation,quartzite jade,is carried out by means of conventional gemological instrument analysis coupled with infrared spectrum and X-ray fluorescence spectrum.The study result shows that albite jade and quartzite jade exhibit similar gemological physical parameters in terms of refractive index and specific gravity.The infrared absorption spectrum reveals that theypossess significantly different absorption peaks.The X-ray fluorescence spectrum analysis shows that the main elements of quartzite jade are O and Si,with SiO_(2)content up to 99%,while the main elements of albite jade are O,Si,Al and Na,with SiO_(2)content up to 66.9%,Al_(2)O_(3)content 20.3%and Na_(2)O content 12.2%,respectively.The study result can provide a necessary instruction for the identification of albite jade and quartzite jade.

关 键 词：钠长石玉 石英岩玉 红外光谱 鉴别 

分 类 号：TS933[轻工技术与工程]