摘要:
近年来,翡翠市场上出现了一种“新型”处理翡翠(注蜡)。这种注蜡翡翠与未注蜡翡翠在肉眼上无明显差别,且结构未遭到破坏,但在紫外荧光灯下和红外光谱中有异常现象。这对实验室检测定名及销售市场产生了很大的困扰。为此,在对“新型”处理翡翠(注蜡)实验研究的基础上,采用宝石学常规检测、高倍率放大观察和光谱学测试对30件注蜡前、后的翡翠样品进行了综合研究。结果显示,肉眼(放大)观察时,这种注蜡翡翠的颜色、结构基本未遭破坏,但在紫外荧光灯和DiamondViewTM下具有蓝白色荧光,红外光谱中具有2 850,2 920,2 956cm-1处的强吸收峰。根据“GB/T 16553-2010”《珠宝玉石鉴定》中翡翠优化处理定名的相关规定,本研究的注蜡翡翠应定名为翡翠。
Abstract:
Recently,a kind of "new-type" wax-permeated jadeite appeared on jadeite market.With no destroy of structure,it is difficult to distinguish from natural jadeite by the naked eye.However,abnormal phenomena emerge when those "new-type" jadeites are tested under an ultraviolet fluorescence lamp and by FTIR.So,it is a big challenge for laboratory identification and sales market to single them out.On the basis of the experimental study of the "new type" wax-permeated jadeite samples,the authors collected and tested 30 samples by using the conventional gemmological testing,magnification observation,and spectroscopy tests.It was found that the colour and structure of the samples are not basically destroyed,but bluish white fluorescence appears under ultraviolet fluorescence lamp and DiamondViewTM,and strong infrared absorption peaks are at 2 850,2 920,2 956 cm-1.Based on "GB/T 16553-2010 Gems-Testing",those "new type" wax-permeated jadeite samples should be named jadeite.
下载:
