广东绿玉的物质组成和谱学特征  

COMP0S1T1ON AND SPECTROSCOPIC CHARACTER1ST1CS OF GREEN STONE FR0M GUANGD0NG PROV1NCE

作　　者：王辅亚[1] 张惠芬[1] 冯璜[1] 郭九皋[1] 

机构地区：[1]中国科学院广州地球化学研究所,广州510640

出　　处：《矿物学报》1996年第1期77-81,T001,共6页Acta Mineralogica Sinica

摘　　要：本文主要通过化学分析、扫描电镜、X射线衍射、红外光谱和光吸收谱等测试手段对广东绿玉的物质组成、物化特征、呈色机理进行一些探讨。测试结果表明，广东绿玉的矿物成分主要是绢云母，其次为绿泥石。在不同颜色和质量的绿玉中，除了化学成分不同外，两种矿物的含量、矿物的结晶程度和聚集状态也都不同。所呈现出的各种各样颜色主要与二价铁离子、三价铁离子和钛离子的浓度及赋存状态有关。The comp0sition, physical and chemical properties and coloration mechanism of greenstone from Guangdong have been studied by chemical analysis, SEM, XRD, IR and absorption sPec-trum techniques. It is found that the major mineral components of the green stone are sericite andchlorite. ixfferences are found in chemical compositi0n, content, crystallinity and aggregation statebetween the two minerals from green st0nes differing in colour and quality. The colour of the greenstone is related with the concentrations and existing forms of Fe'+, Fe'+ and Ti cations.

关 键 词：绿玉 物质组成 呈色机理 谱学特征 

分 类 号：P578.46[天文地球—矿物学]