伊利石质玉的宝石学特征

基金项目:

广东省地质科学研究基金资助项目(200513)

详细信息

Gemmological Characteristics of Illite Jade

摘要: 对中国珠宝市场上的一种伊利石质玉石(俗称“紫袍玉”)进行了常规的宝石学测试以及激光拉曼光谱、X射线粉晶衍射和红外光谱测试分析。结果表明,其矿物成分以伊利石为主,含有少量的长石、石英、赤铁矿、菱铁矿和金红石,为泥质沉积岩。该玉石的颜色层次结构清楚,分界明显,与不同沉积层中赤铁矿的质量分数有关。
- 伊利石质玉 /
- 宝石学特征 /
- 激光拉曼光谱 /
- X射线粉晶衍射 /
- 红外光谱
Abstract: The gemmological characteristics of illite jade (the popular name with "Zipao jade") in the market of China are analysed by using the conventional gemmological methods and mordern testing methods such as laser Raman spectrometer,XRD and IR.The results indicate that the jade mainly consists of illite and a small quantity of feldspar,quartz,hematite,siderite and rutile,which is argillaceous sedimentary rock.The colour of illite jade is of distinct gradation which is related to the content of hematite in different sedimentary bed.
- illite jade /
- gemmological characteristic /
- laser Raman spectrum /
- XRD /
- IR

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