水钙铝榴石——一种翡翠相似玉的研究

详细信息

Study on Hydrogrossular: Analogous Jade to Jadeite Jade

1. Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China;
2. Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China;
3. Department of Resources and Environmental Engineering, Guilin University of Technology, Guilin 541004, China;
4. School of Chemistry and Chemical Engineering, Guangxi Normal University, Guilin 541004, China

摘要: 采用常规宝石学测试方法及现代测试技术(SEM,XRD,FTIR)对中国珠宝市场上一种外观与黄色翡翠十分相似的玉石品种进行了较系统的研究。测试结果显示,相似玉的折射率为1.734,密度为3.46 g/cm³,具细粒隐晶质结构;在SEM下其颗粒主要呈粒状、棱角状和碎裂状,大小约2~5μm;XRD和FTIR分析表明,该相似玉由主要矿物水钙铝榴石和次要矿物符山石组成,与翡翠的宝石学特征存在明显的不同。
- 水钙铝榴石 /
- 相似玉 /
- 黄色翡翠
Abstract: The analogous jade to yellow jadeite jade on oppearance on Chinese gem market is studied by using conventional gemmological methods and morden testing techniques(SEM,XRD,FTIR).The results show that the analogous jade is with refractive index of 1.734,density of 3.46 g/cm³,fine-grained cryptocrystalline texture.Under SEM,the crystal grains are in granular,angular and cataclastic shapes,with size of 2~5 μm.The study by XRD and FTIR indicates that the analogous jade consists of essential mineral hydrogrossular and auxiliary mineral vesuviante.Therefore,the gemmological characteristics of hydrogrossular are obviously different from that of yellow jadeite jade.
- hydrogrossular /
- analogous jade /
- yellow jadeite jade

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