摘要
青海野牛沟透闪石玉颜色淡雅、质地温润,深受消费者们的喜爱,目前对其矿物学特征及颜色成因的研究相对不足,为其科学鉴别及商业评价造成了一定程度的影响。采用红外光谱、拉曼光谱、激光剥蚀电感耦合等离子体质谱仪及紫外—可见吸收光谱等测试技术,系统地研究了该区透闪石玉的矿物组成及颜色成因等内容。结果显示:青海野牛沟透闪石玉的主要矿物组成是透闪石,玉石呈纤维交织结构及显微叶片状结构,块状构造,颜色为淡紫色调。结合紫外—可见光谱与LA-ICP-MS的结果,认为是Fe3+与Mn^(2+)同时进入晶体结构中与Mg^(2+)发生了类质同象替换,导致了烟紫色的形成。
The tremolite jade in Yeniugou,Qinghai is elegant in color and mild in texture,and is deeply loved by consumers.At present,there is relatively insufficient research on its mineralogical characteristics and color genesis,which has caused a certain degree of influence on its scientific identification and commercial evaluation.In this paper,FTIR,Raman spectroscopy,LA-ICP-MS and UV-Vis were applied to analyze to the mineral component and color origin of the tremolite jade in this area.The results show that the main mineral composition of tremolite jade in Yeniugou,Qingghai is tremolite.The jade has a fiber-interlaced structure and a micro-leaf-like structure,a block structure,and a light purple tone.Combined with the UV-Vis and LA-ICP-MS,it was concluded that the isomorphous substiution of Mg^(2+) by Fe3+and Mn^(2+) was the main cause of the smoke purple.
作者
郝楠楠
陶隆凤
王宁
张凯成
HAO Nan-nan;TAO Long-feng;WANG Ning;ZHANG Kai-cheng(Hebei GEO University,Shijiazhuang 050031,China;North China University of Science and Technology,Tangshan 063210,China;Chizhou Xunyu Co.,Ltd,Chizhou 247100,China)
出处
《河北地质大学学报》
2021年第6期11-15,共5页
Journal of Hebei Geo University
基金
中央引导地方科技发展专项(19944903G)
河北省战略性关键矿产资源重点实验室开放基金资助(HGU-RGM2004)。
关键词
野牛沟
透闪石玉
矿物组成
颜色成因
红外光谱
Yeniugou
tremolite jade
mineral composition
color origin
infrared spectrum
