CAJ | 학술논문

选取新疆和辽宁岫岩两地不同颜色的软玉，青玉、黄玉、白玉、碧玉及岫岩的特殊品种---河磨玉作为研究对象，通过宝石学测试、红外吸收光谱和X粉晶衍射分析对两个产地不同种类及颜色软玉的宝石矿物学特征进行了系统研究和对比，以探索两产地相近颜色软玉的异同，为软玉的产地鉴别提供理论依据。研究结果表明，辽宁岫岩与新疆软玉的宝石学性质相似，折射率为1.60～1.62，密度为2.660～3.020 g · cm -3，密度随颜色的不同有一定差异，荧光特征均不明显，两产地软玉的主要组成矿物均为透闪石，其中新疆碧玉中含有少量绿泥石、伊利石等粘土矿物。两产地不同种类软玉的X粉晶衍射分析显示，不同种类软玉的衍射峰峰形特征及衍射强度在一定程度上可以反映软玉的质地及结晶颗粒大小。红外吸收光谱显示两产地软玉的红外吸收光谱特征类似，对鉴别软玉产地及种属意义不大。
선취신강화료녕수암량지불동안색적연옥，청옥、황옥、백옥、벽옥급수암적특수품충---하마옥작위연구대상，통과보석학측시、홍외흡수광보화X분정연사분석대량개산지불동충류급안색연옥적보석광물학특정진행료계통연구화대비，이탐색량산지상근안색연옥적이동，위연옥적산지감별제공이론의거。연구결과표명，료녕수암여신강연옥적보석학성질상사，절사솔위1.60～1.62，밀도위2.660～3.020 g · cm -3，밀도수안색적불동유일정차이，형광특정균불명현，량산지연옥적주요조성광물균위투섬석，기중신강벽옥중함유소량록니석、이리석등점토광물。량산지불동충류연옥적X분정연사분석현시，불동충류연옥적연사봉봉형특정급연사강도재일정정도상가이반영연옥적질지급결정과립대소。홍외흡수광보현시량산지연옥적홍외흡수광보특정유사，대감별연옥산지급충속의의불대。
The nephrite species with different colors from Xinjiang and Xiuyan ,Liaoning ,including gray nephrite ,yellow neph-rite ,white nephrite ,jasper and He-Mo nephrite ,a special nephrite from Xiuyan ,were selected for the present study .The ge-mological 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 simi-lar 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 neph-rites .