红珊瑚文物的拉曼光谱表征及其在19世纪前中西方交流

Raman Spectroscopic Characteristic of Red Coral Artifact and Its Communication between China and the West before the 19th Century

  • 摘要: 红珊瑚在古代亚欧文化物质交流以及近代全球化进程中曾起到关键作用、具有重要的研究意义,但国内目前对古代红珊瑚制品的科技分析及研究尚较薄弱。本研究使用台式激光共聚焦拉曼光谱仪和便携式拉曼光谱仪对一批珠饰文物进行了原位无损检测,确认其为天然红珊瑚制品。文献记载中国汉代之后红珊瑚制品多来自地中海地区,是丝绸之路开通后中外贸易、文化交流的直接产物。尽管红珊瑚在古代不同时期的中外交流中有重要意义,但丰富的古代文献记录与我国明代之前出土红珊瑚实物证据很少的现实并不匹配。古代红珊瑚文物遭受劣化后较易与其他材料混淆可能是原因之一。因此,应在考古发掘和博物馆整理工作中使用包括拉曼光谱法在内的科技手段对疑似红珊瑚的样本进行识别和鉴定,以更好地揭示红珊瑚在在古代贸易活动中的意义。

     

    Abstract: Red coral played an important role in the cultural and material exchanges between Asia and Europe in ancient times and in the process of modern globalization. However, the scientific and technological analysis and research on ancient red coral products in China are still weak. In this study, a batch of beaded artifacts were confirmed as natural red coral products by in-situ nondestructive testing using benchtop laser confocal Raman spectrometer and portable Raman spectrometer. According to the literature, after the Han Dynasty, most red coral products were imported from the Mediterranean area, which was the direct product of trade and cultural exchanges between China and foreign countries after the opening of the Silk Road. Although red coral played an important role in the communication between China and foreign countries in different periods of ancient times, the abundant ancient literature records did not commensurate with the reality that there was little physical evidence of red coral excavated from remains and sites before the Ming Dynasty. And one reason may be that red coral artifacts are easily confused with other materials after deterioration.Therefore, scientific and technological means, including Raman spectroscopy, should be used in archaeological excavations and museum work to identify suspected red coral samples, so as to better reveal the significance of red coral in ancient trade activities.

     

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