GEMMOLOGICAL RESEARCH ON GUILIN HYDROTHEMAL SYNTHETIC RUBY AND SAPPHIRE
-
摘要: 桂林水热法合成红宝石带有橙色色调, 具有与天然红宝石及橙红色蓝宝石不同的吸收光谱, 由Cr3+,Mn3+,Ni3+等过渡离子致色;浅黄色合成蓝宝石由 Ni3+致色, 与天然黄色蓝宝石的吸收光谱特征不同;最具普遍意义的鉴定特征是种晶片残余、呈面状分布的尘埃状包裹体以及缺少明显的生长纹理和含水的红外吸收光谱。Abstract: Guilin hydrothermal synthetic ruby and sapphire are a new product after the marketing of Tairus hydrothermal synthetic ruby and sapphire. Studies reveal the following characters: Guilin hydrothermal synthetic ruby has the colour of orange and the absorption spectrum which is different from that of the natural ruby and orange-red sapphire(Pad), with its colour being caused by such transitional ions as Cr 3+, Mn 3+ and Ni 3+; light yellow synthetic sapphire has its colour caused by Ni 3+ and its absorption spectrum differs from that of the natural yellow sapphire; the most universal characteristics for identification are the residual of the seed crystal, dust-like inclusions distributing as planar, and the lack of apparent growth lamination and hydrous infrared absorption spectrum.
-
Keywords:
- hydrothermal synthetic technique /
- synthetic gem /
- ruby /
- sapphire /
- corundum /
- Guilin
-
-
[1] 袁心强, 匡永红, 狄敬如. 桂林水热法合成红宝石的鉴定特征。宝石和宝石学杂志, 1999,1(1): 47-49 [2] Peretti A,Sm ith C P.A new type of synthetic ruby on themarket:offered as hydrothermal rubies from Novosibirsk. TheAustralian Gemm ologist,1993,18(5): 14 9-15 7
[3] Peretti A. Inclusions in synthetic rubies and syntheticsapphires produced by hydrothermal m ethods (Tairus,Novosibirsk,Russia). The Journal of Gem mology,1997,2 5(8): 5 40-5 6 1
[4] Peretti A,Smith C P.L etter to the editor.The Journal ofGem mology,1994,2 4(8): 6 1-6 3
[5] Schmetzer K,Peretti A. Characterization of a group ofexperimental Russian hydrothermal synthetic sapphires. TheJournal of Gemmology, 2000, 2 7(1): 1-7
[6] Thomas V G,Mashkovtsev R I. Tairus hydrotherm alsynthetic sapphires dopped with nickel and chromium. Gems &Gem ology,1997,33(3)
[7] Mc Clure D S. Optical spectra of transition-metal ion icorundum. The Journal of Chemical Physics,196 1,36 (10): 2 75 7-2 779
[8] Themelis T. The heat treatment of ruby and sapphire. U SA:Word Graphics,Inc,1992
计量
- 文章访问数: 29
- HTML全文浏览量: 0
- PDF下载量: 2