印度鱼眼石的宝石学特征研究  

Gemological Characteristics of Indian Apophyllite

作　　者：孔烨 KONG Ye(Jewelry College of China University of Geosciences,Beijing 100084,China)

机构地区：[1]中国地质大学珠宝学院

出　　处：《超硬材料工程》2019年第6期51-57,61,共8页Superhard Material Engineering

摘　　要：针对于印度浦那产的鱼眼石样品进行研究,主要通过常规宝石学特征测试、扫描电镜能谱分析、X射线粉晶衍射、激光拉曼光谱仪和傅立叶变换红外光谱仪分析,得出了印度鱼眼石的宏观形态特征、物相组成、化学成分和包裹体等特征。印度鱼眼石主要呈柱状、锥状、板状和晶簇状,共生矿物含有石英和沸石,其内部的包裹体以气、液两相包裹体为主,肉红色部分含有大量的固体包裹体,绝大多数为石英,有少量的鱼眼石和赤铁矿。不同期次形成的鱼眼石其成分有所差异,有少量的Na元素取代了K元素;带有黄绿色调的部分与无色部分成分也有所差异,带有黄绿色调的部分含有Al元素,而无色部分无Al元素,带有黄绿色调的部分相比于无色部分F元素的含量较高,Si元素、K元素和Ca元素的含量较低。The apophyllite samples produced in India were studied.Its macroscopic morphological features,phase composition,chemical composition,and inclusions,were obtained through conventional gemological characteristic testing,scanning electron microscopy,X-ray powder diffraction,laser Raman spectroscopy,and Fourier transform infrared spectrometer analysis.The crystals of apophyllites in India were mainly columnar,conical,plate-like and cluster-like with the symbiotic mineral group containing quartz and zeolite.There were mainly gas-liquid two-phase inclusions inside it,and the red meat part contained a large number of solid inclusions,most of which were the quartz accounted with small amount of apophyllite and hematite.There were differences among the compositions of the apophyllite in the different phases.A small amount of Na replaced the K element.The components with yellow-green tones also differed from those in the non-colored tone,and the portion of yellow-green tones contained Al,but the colorless portion were free of Al element.The content of F elementthe of the portion in yellow-green tone was higher than the one of colorless part,but the content of Si element,K element and Ca element lower.

关 键 词：鱼眼石 矿物学特征 印度 化学成分 红外光谱 X射线粉晶衍射 包裹体 

分 类 号：TS933[轻工技术与工程]