Abstract：Jadeite is a kind of precious jade. The value of different grades of jadeite varies greatly. Jadeite is treated by filling, dyeing, etc. to improve the appearance quality, and it is pretended to be natural jadeite. It is very necessary to identify jadeite jade. In this paper, the samples of A, B, C, B+C jadeite with different colors on the market are collected comprehensively. Based on the description of conventional gemological characteristics, the three-dimensional fluorescence spectra are tested. Three-dimensional fluorescence spectroscopy is a new fluorescence analysis technology developed in recent years. It has not been widely used in gemology. At present, the non-destructive testing of the gem filled with glue mainly depends on the infrared spectrum. The test results will be affected by the polishing degree of the sample surface and the transparency of the sample. The three-dimensional fluorescence spectroscopy technology has no high requirements on the polishing degree and transparency of the sample, to a certain extent, it can avoid the influence of the polishing degree and transparency of infrared spectrum on the test results，three-dimensional fluorescence spectroscopy technology is used to analyze the three-dimensional fluorescence spectrum characteristics of different types of jadeite samples on the market, Except that A jadeite has no fluorescence reaction, the fluorescence center of B jadeite is mostly concentrated at 380 nm(λex)/440 nm(λem). It has moderate, strong blue-white fluorescence under long-wave of the ultraviolet lamp, The fluorescence center of C jadeite is concentrated at 365 nm(λex)/443 nm(λem). It shows weak purple fluorescence under long and short-wavelength ultraviolet light. The fluorescence center of B+C purple jadeite is concentrated at 365(λex)/443 nm(λem), It has blue-violet fluorescence under long-wavelength ultraviolet light, the fluorescence peak of B+C green jadeite is mainly concentrated at 290(λex)/308 nm(λem), It has weak blue-white fluorescence under short wave ultraviolet light, the fluorescence peak of B+C yellow jadeite is concentrated at 335(λex)/377 nm( λem), Weak green fluorescence appears under long-wavelength ultraviolet light, the fluorescence peak of B+C red jadeite is 290(λex)/308 nm(λem). Weak green fluorescence under long-wavelength ultraviolet light. Under the 255 nm excitation light source, the luminescent range of jadeite jade with different treatment types is concentrated in the purple-blue region, the center wavelength of different processing types of jade is B+C green jadeite >B jadeite >C jadeite, Under the 365 nm excitation light source, the fluorescence intensity of jadeite samples is obviously stronger than that of short wave, and the luminescence range of jadeite jade with different treatment types is concentrated in the purple-green region, the center wavelength of different processing types of jadeite is B+C yellow jadeite >B+C green jadeite >B+C purple jadeite >C jadeite >B jadeite. Three-dimensional fluorescence spectroscopy is helpful to characterize resin, organic dyes, metal dyes. It can quickly and effectively identify different types of treated jadeite.
马 平，沈锡田，邵 天，张志清，罗 恒. 常见翡翠的三维荧光光谱特征研究[J]. 光谱学与光谱分析, 2021, 41(03): 961-966.
MA Ping, Andy Hsitien Shen，SHAO Tian，ZHANG Zhi-qing, LUO Heng. Study on Three-Dimensional Fluorescence Spectrum Characteristics of Common Jadeite Jade. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(03): 961-966.
