微量元素“指纹”研究及在泰山玉鉴定中的应用—以甘肃省武山县鸳鸯玉为例

Study on Trace Elements "fingerprint" and Application in Taishan Jade Identification—Setting Yuanyang Jade in Wushan County in Gansu Province as an Example

摘要:

在开展泰山玉鉴定“指纹”研究中，系统采集了全国蛇纹石玉产地样品，对微量元素进行了测试，发现不同产地样品和泰山玉微量元素之间，有着类似于人类“指纹”的差异，可以用以鉴定泰山玉。该文以甘肃省武山县鸳鸯玉为例，利用中国超镁铁质岩元素平均丰度值，对两个产地样品的微量元素含量值进行标准化并作蛛网图进行对比，认为V，Sc，Sb，Tl，Zn等5个元素在两个产地样品中有着普遍的差异性；可作为鉴定两地玉石的“指纹”依据。其他产地蛇纹石玉和泰山玉之间，也因产出地质环境的差异，可用微量元素“指纹”与泰山玉进行区别。

Abstract:

In the study of "fingerprint" identification by using Taishan jade, samples from serpentine jade producing areas in China have been collected systematically, and trace elements have been tested. There are some differences in trace elements between samples from different producing areas and trace elements from Taishan jade, which are similar to human fingerprint. It can be used to identify Taishan jade. Regarding the Yuanyang jade in Wushan county of Gansu province as an example, the average abundances of elements in Chinese ultramafic rocks are used to standardize the trace element contents of two producing areas. Comparing with spider diagram, it is considered that five elements, such as V, Sc, Sb, Tl, and Zn have universal differences in the two production areas. It can be used as the “fingerprint” basis for the identification of jade in the two places. In other places between serpentine jade and Taishan jade, due to the difference of geological environment in production areas, “fingerprints” of trace elements can be used to distinguish from Taishan jade.