Abstract：The nephrite species with different colors from Xinjiang and Xiuyan, Liaoning, including gray nephrite, yellow nephrite, white nephrite, jasper and He-Mo nephrite, a special nephrite from Xiuyan, were selected for the present study. The gemological testing method, infrared absorption spectroscopy and X-ray powder diffraction were used to analyze and compare the gemological characteristics of the nephrite with different colors and textures from the above localities, in order to understand the similarities and differences between these nephrites with similar colors but different origin, and provide a theoretical basis for the identification of the nephrite origin. The results show that the nephrites from Xinjiang and Xiuyan, Liaoning province have similar gemological properties. They have similar refractive index of 1.60～1.62 and density of 2.660~3.020 g·cm-3, and only the density has some differences with different colors. The fluorescence characteristics are not obvious in these nephrites. The major constituent minerals for these nephrites are tremolite, and small amounts of clay minerals such as chlorite and illite are found in the jasper from Xinjiang. Based on the X-ray powder diffraction analysis on the different types of nephrite from two localities, it was shown that the character of spectra peaks and diffraction intensity of different types of nephrite can reflect the texture of the nephrite and the size of crystalline particles to some extent. The infrared absorption spectra are similar for the nephrites from two localities. The infrared absorption spectrum does not make sense to identify the origin and species of nephrites.
Key words：Nephrite;Gemological characteristics;Infrared absorption spectroscopy;X-ray powder diffraction;Xinjiang and Xiuyan
陈全莉，包德清，尹作为* . 新疆软玉、辽宁岫岩软玉的XRD及红外光谱研究 [J]. 光谱学与光谱分析, 2013, 33(11): 3142-3146.
CHEN Quan-li, BAO De-qing, YIN Zuo-wei* . Study on XRD and Infrared Spectroscopy of Nephrites from Xinjiang and Xiuyan, Liaoning . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(11): 3142-3146.
[1] ZHANG Bei-li(张蓓莉). Systematic Gemmology(系统宝石学). Beijing：Geology Publishing House(北京：地质出版社)，2006. [2] TANG Hong-yun, QIAN Wei-ji, LU Xiao-ying, et al(汤红云，钱伟吉，陆晓颖，等). Journal of Gems and Gemmology(宝石和宝石学杂志), 2012, 14 (1): 24. [3] WU Rui-hua, LI Wen-wen, AO Yan(吴瑞华，李雯雯，奥 岩). Journal of Gems and Gemmology(宝石和宝石学杂志), 1999, 1(1): 7. [4] FENG Xiao-yan, ZHANG Bei-li(冯晓燕，张蓓莉). Journal of Gems and Gemmology(宝石和宝石学杂志), 2004, 6(4): 7. [5] Yan Liu, Jun Deng, Guanghai Shi, et al. Ore Geology Reviews, 2011, 41: 122. [6] Liu Yan, Deng Jun, Shi Guanghai, et al. Resource Geology, 2010, 60(3): 249. [7] ZHOU Zhen-hua, FENG Jia-rui(周振华，冯佳睿). Acta Petrologica et Mineralogica(岩石矿物学杂志), 2010, 29(3): 331. [8] FU Xiu-feng, GAN Fu-xi, MA Bo, et al(伏修锋，干福熹，马 波，等). Acta Petrologica Sinica(岩石学报), 2007, 23(5): 1197. [9] Chen T H, Calligaro T, Pages-Camagna S, et al. Applied Physcis A-materials Science & Processing, 2004, 79(2): 177. [10] Wilkins C J, Tennant W C, Williamson B E, et al. American Mineralogist, 2003, 88(8-9): 1336. [11] GUO Li-he, HAN Jing-yi(郭立鹤，韩景仪). Acta Petrologica et Mineralogica(岩石矿物学杂志), 2002, 21: 68. [12] WANG Li-ben, LIU Ya-ling (王立本，刘亚玲). Acta Petrologica et Mineralogica(岩石矿物学杂志), 2002, 21(Suppl.): 62. [13] ZENG Zhi-gang, LI Chao-yang, LIU Yu-ping, et al(曾志刚，李朝阳，刘玉平，等). Geology Geochemistry(地质地球化学), 1998, 26(2): 34. [14] Farmer V C(法默 V C，著). Infrared Spectroscopy of Mineral(矿物的红外光谱). Translated by YING Yu-pu, WANG Shou-song, LI Chun-geng, et al(应育浦, 汪寿松, 李春庚，等译). Beijing: Science Press(北京: 科学出版社), 1982. 304.
