石英岩玉(独龙玉)及其处理品的无损鉴别

Non-destructive identification methods of quartzite(“Dulong Yu”)and its treated products

近年来,云南珠宝市场出现了一种商贸名称为“独龙玉”的新兴石英岩玉石。由于拥有和冰种飘花翡翠极为相似的外观而又价格低廉,深受众多消费者喜爱。但随着消费群体的认可以及“独龙玉”销量的增加,市场上有关“独龙玉”的处理品随之诞生,鱼龙混杂,给消费者造成不少损失,损害真正“独龙玉”的形象和价值。作者选取了天然、部分充填、染色、充填染色处理的4件具代表性的“独龙玉”样品,利用实验室常规检验设备以及红外光谱仪,分析了4件“独龙玉”样品的常规宝石学及光谱特征,重点介绍了石英岩玉(独龙玉)及其处理品的无损鉴别方法。

Recently a new kind of jade named“Dulong Yu”has arisen in the Yunnan jewelry market.Because its similar appearance to the species like ice of floating jadeite but low price,it is very popular with people.With the appreciation for consumer groups and increasement for sales,the treated products of“Dulong Yu”emerged in the market,the treated products of“Dulong Yu”cause lots of loss for consumers and the brand image with value for true“Dulong Yu”.In this paper,four typical samples of“Dulong Yu”,which are natural,partially filled,dyed,filled and dyed,were selected.The gemmological and spectral characteristics of four samples of“Dulong Yu”were analyzed by using routine laboratory equipment and infrared spectrometer.The non-destructive identification method of quartzite(Dulong Yu)and its treated products is introduced.