苏纪石与其仿制品的鉴定方法  

Study on identification methods of sugilite rock and sugilite rock imitation

作　　者：吴嵩[1] 招博文[1] 陆晓颖[1] 钱伟吉[1] 吕晓瑜[1] Wu Song;Zhao Bowen;Lu Xiaoying;Qian Weiji;LüXiaoyu(Shanghai Institute of Measurement and Testing Technology)

机构地区：[1]上海市计量测试技术研究院

出　　处：《上海计量测试》2023年第6期2-6,共5页Shanghai Measurement and Testing

摘　　要：通过显微镜观察、红外光谱、紫外-可见吸收光谱等方法对苏纪石与染色石英岩、染色透闪石质玉、塑料、斜红磷铁矿、紫硅碱钙石等苏纪石仿制品进行了分析和研究。结果表明,用显微镜观察法可以识别出染色处理特征和部分仿制品的特殊形貌结构。硅铁锂钠石含量较高的苏纪石样品在1 147 cm^(-1)、1 080 cm^(-1)、1 053 cm^(-1)、777 cm^(-1)、673 cm^(-1)、534 cm^(-1)、468 cm^(-1)等位置出现硅铁锂钠石的特征红外吸收谱峰,仿制品与其有显著差异,利用红外光谱法可以从材质角度有效鉴别苏纪石与其仿制品。紫外-可见吸收光谱中,560 nm附近的宽吸收带和410 nm、415 nm附近的弱吸收峰是苏纪石的重要鉴定特征。Sugilite rock and sugilite rock imitation such as dyed quartzite jade,dyed tremolite,plastics,phosphosiderite,charoite were analyzed by microscopic observation,fourier transform infrared spectrometer(FTIR)and UV-Vis spectrometer.The results demonstrated that dyeing characteristics,morphological characteristics and mineral texture can be observed by gem microscope.Sugilite rock with high content of sugilite shows infrared absorption peaks around 1147 cm^(-1),1080 cm^(-1),1053 cm^(-1),777 cm^(-1),673 cm^(-1),534 cm^(-1),468 cm^(-1),which differs significantly from that of sugilite rock imitations.Therefore,sugilite rock and sugilite rock imitation can be identified and distinguished by FTIR.Within the UV-Vis spectra,strong absorption band around 560 nm and two weak absorption peaks around 410 nm and 415 nm are typical characteristics of sugilite rock.

关 键 词：苏纪石 苏纪石仿制品 硅铁锂钠石 染色 

分 类 号：TS933[轻工技术与工程]