河南南阳独山玉的岩相结构和无损分析(英文)

MINERAL STRUCTURE AND NONDESTRUCTIVE ANALYSIS OF DUSHAN JADE FROM NANYANG OF HENAN

河南南阳独山玉的开采历史可以追溯到新石器时代,在我国玉文化中占有重要地位。鉴于当前对独山玉进行无损鉴别的方法较少,利用质子激发X荧光技术(proton induced X-ray emission,PIXE)、X射线衍射(X-ray diffraction,XRD)、激光Raman光谱(laser Raman spectroscopy,LRS)和扫描电子显微镜(scanning electron microscope,SEM)等技术对河南南阳独山玉料进行岩石矿物学分析。结果表明:独山玉主要由钙长石矿物构成,晶粒细小且结合紧密的显微结构与独山玉具有极高的稳定性有较大关系。PIXE,XRD和Raman技术作为无损分析方法为鉴定独山玉提供了准确有效的方法,为研究贵重的古玉样品提供了技术支持。

Dushan jade has been used since the Neolithic period, and has played a very important role in Chinese traditional culture. So far, little work has been done on methods to identify Dushan jade in a non-destructive way. In the present work, proton induced X-ray emission （PIXE）, X-ray diffraction （XRD）, laser Raman spectroscopy （LRS）, and scanning electron microscope （SEM） were employed to analyze the mineral structure of Dushan jade produced in Nanyang, Henan province. The results demonstrated that the major mineral component in Dushan jade is anorthite. The grains are very small and are tightly integrated with each other. The high stability of Dushan jade is correlated with the microstructure, Nondestructive experimental methods provide a correct and effective means for identification of Dushan jade and also provide technical support for research on precious ancient Chinese jade artifacts.