几种不同产地软玉的岩相结构和无破损成分分析

利用质子激发X射线荧光（PIXE）、X射线衍射（XRD）、扫描电子显微镜（SEM）以及激光拉曼光谱（LRS）技术对几个来自中国新疆、俄罗斯、加拿大和新西兰等地的软玉样品的进行了岩石矿物学特征分析,从成分组成和微观织构方面比较了各地软玉的不同特征.实验结果显示了软玉作为透闪石质玉石,随着Fe2O3含量的增加,逐步向阳起石过渡.中国和田玉以其特有的毛毡状纤维交织结构,形成了均匀细腻、油脂光泽的表面特征.无破损成分分析方法为研究贵重的古玉样品提供了技术支持.

Proton induced X - ray emission ( PIXE), X - ray diffraction (XRD), scanning electron microscope ( SEM) and laser raman spectrum ( LRS) were used to analyze the mineralogy of several nephrite samples from Xinjiang ( China), Russia, Canada and New Zealand. Specimens from different localities were compared based on their components and micro - morphology. The experimental results show that nephrite are tremolite structures which transmit to the actinolite with the increase of iron content. Due to its fibrous matted structure, Hetian jade hold the homogeneous and lustrous surfaces. The nondestructive experimental methods also provide the technical support for research on the Chinese valuable ancient jade.