岩石矿物学杂志2012，Vol.31Issue(2)：261-270,10.
中国3个商业性钻石产地天然钻石的DiamondViewTM图像及其意义
The DiamondViewTM images of natural diamonds from three commercial diamond localities in China and their significance
摘要
Abstract
The study of geographic locality of diamonds is the key to Kimberley Process Certification Scheme for Rough Diamonds. The UV fluorescence images provided by DiamondView?(DV) can be used to reveal the growth conditions of diamonds by analyzing their growth structures, therefore to provide evidence for diamond source. In this paper, 236 natural diamonds from China's three commercial producing localities of Mengyin, Shandong Province, Wafangdian, Liaoning Province, and Changde, Hunan Province were systematically investigated by DiamondView?. The DV images, together with their cathodoluminescence (CL) images and quanti-tative calculating results of Fourier-transform infrared (FTIR) spectra, were used to discuss the reason why diamonds from the three sources would differ from each other in their luminescence structure patterns and fluorescence colors. It is found that DV images of diamonds from the three sources basically coincide with the growth structures shown by their CL images, but without clear correlation between luminescence structure patterns of diamonds and the incorporation of nitrogen and hydrogen or concentration distribution patterns of these elements. Though DV images of diamonds are not fully decided by their types, the fluorescence colors do relate to some impurity elements and lattice defects in the diamonds. Generally speaking, DV images are influenced by various factors, such as crystallization conditions of diamonds, mantle fluid metasomatism, dissolution and irradiation damages. Statistics show that there are certain differences of DV image patterns and fluorescence colors between diamonds from the three localities, and the differences can be used as macroscopic statistical characteristics of possible different diamond localities. In addition, DiamondView? Is similar to CL in photographic effects of revealing growth structures of natural diamonds and is more convenient in operation.关键词
钻石/DiamondViewTM荧光图像/阴极发光/生长结构/产地来源Key words
diamond/ DiamondView? Image/ cathodoluminecsence/ growth structure/ locality分类
天文与地球科学引用本文复制引用
孙媛,陈华,丘志力,陆太进,梁伟章,张健,李榴芬,王琦,莫默..中国3个商业性钻石产地天然钻石的DiamondViewTM图像及其意义[J].岩石矿物学杂志,2012,31(2):261-270,10.基金项目
国土资源部公益性行业科研项目(200811012) （200811012）
国家质量监督检验检疫总局(20071K006) （20071K006）
