一种商业名为“金丝海柳”的宝石仿制品特征研究

Study on the Characteristics of a Gem Imitation Given Commercial Name of "Jinsi Hailiu"

针对近期瑞丽珠宝市场上出现的商家称为“金丝海柳”的工艺品,采用常规宝石学测试、红外吸收光谱、拉曼光谱、紫外-可见光谱等方法,对其材料属性、鉴别特征进行研究,并探讨其颜色成因。比较它与天然金海柳、虎睛石等天然宝石材料的差异性。结果表明,此类工艺品属于醇酸树脂类塑料,“木质纤维状外观”的假象、表面呈现动感变化的亮光以及丝绢光泽等是其典型特征。其纹理形态、物质成分与天然金海柳(金珊瑚)有显著不同;以密度小、硬度低、触摸有温感、不具有猫眼效应等特征与虎睛石相区别。商家出于逐利动机,对各种宝石仿制品冠之以千奇百怪吸人眼球的名称。消费者在选购时应以专业质检机构给出的鉴定结果为依据,切不可偏听偏信,以免上当受骗。

A new kind of handicraft whose commercial name is called as "Jinsi Hailiu" has appeared in Ruili jewellery market recently.The conventional gemmological tests,infrared absorption spectrum,Raman spectrum and ultraviolet-visible spectroscopy techniques were used to analyze material properties and recognition characteristics of such handicrafts,and the coloration mechanism was discussed.Meanwhile,the difference between the handicrafts and natural gemstones including Jinhailiu and Tiger's eye stone was compared.The results showed that this handicraft was actually alkyd resin plastics.Its typical recognition features included the misguided impression of "wooden fibrous appearance",a movable light area on the surface,and the silky luster.Its texture morphology and material composition were significantly different from those of natural golden willow (golden coral).It also differed from tiger eye stones in its characteristics including small density,low hardness,touch feels warm,and no cat-eye effect.By profit motive,the merchants nominated all kinds of imitations with strange and eye-catching names.When choosing and purchasing,consumers should firmly believe identification conclusion made by a quality Inspection organization to avoid being deceived by one-side story.