云南腾冲市场常见琥珀优化处理制品及仿制品

Amber and Its Imitation in Tengchong Market,Yunnan Province

云南腾冲是缅甸琥珀在中国市场的主要中转集散地。近年来,随着琥珀市场的升温,腾冲市场上出现了各种缅甸琥珀的优化处理制品、仿制品和新品种。为了规范琥珀销售市场、为质检部门的检测提供帮助,采用宝石显微镜、紫外荧光灯、红外光谱等测试方法,总结归纳腾冲市场常见琥珀优化处理制品及仿制品的鉴别特征。经充填、压制再造和覆膜的琥珀在自然光与紫外荧光下可见不平坦的表面、局部荧光异常的现象;塑料、"二代琥珀"、柯巴树脂类的琥珀仿制品在显微镜下可见异常流淌纹、特殊荧光现象,红外光谱特征异常;结构异常、荧光异常、红外谱峰特征的新矿区"血茶珀"和类似缅甸根珀的品种,行业内尚未统一定论,仍需进一步研究。

Tengchong market of Yunnan Province is a key distributing centre where burmite products including raw materials and finished products,are traded and sold to the other markets in china.In recent years,more and more various treated burmite products,imitations and new varieties have appeared in the Tengchong market.For a regulated amber market,this article gave a summary of identification among treatment products,imitations,new varieties of burmite and natural amber,by using gem microscope,ultraviolet fluorescence lamp,infrared spectroscopy.The phenomenon of uneven surface and local fluorescence abnormality can be seen under natural light and ultraviolet light in the filled,compressed and reconstituted amber.The plastic,＂second-generation amber＂and copal resin showed abnormal flow patterns under gem microscope,and presented special fluorescence under ultraviolet light and abnormal infrared spectral characteristics.The characteristics of abnormal structure,fluorescence and infrared spectrum peaks of＂Xuecha amber＂in the new mining area and varietythat is similar to the root amber from Burma have not been uniformly determined in the industry,which need to be further studied.