摘要
以紫色玉髓样品为主要研究对象,利用偏光显微镜、背散射电子图像、激光剥蚀-等离子体质谱、紫外-可见-近红外分光光度计等测试手段,对其进行了图像、成分和光谱的分析,对比其他学者的研究成果,对紫色玉髓的颜色成因进行了探讨。研究认为,3块紫色玉髓样品的紫色成因都可以用色心进行解释,只是色心的形成过程各有不同。样品中微量杂质元素和水的存在,对于颜色的形成也有一定的影响。
This paper focuses on three purple chalcedony samples.In order to explore the color-forming mechanism of these samples,the authors used such means as polarizing microscope,EPMA,LA-ICP-MS,and UVVis spectroscopy.The images and the trace element analysis results were compared with previous studies.It is very probable that the color center caused the pattern for color formation.The formation of purple color was also influenced by trace elements and water in the samples.
出处
《岩石矿物学杂志》
CAS
CSCD
北大核心
2016年第S1期78-84,共7页
Acta Petrologica et Mineralogica
关键词
紫色玉髓
颜色成因
色心
微量元素
purple chalcedony
color formation
color center
trace elements
