Spectral Analysis of Ceramic-Painting Pigments from Taosi Site
LI Nai-sheng1,YANG Yi-min2,HE-Nu3,MAO Zhen-wei4
1. China National Institute of Cultural Property, Beijing 100029, China 2. Department of Social Sciences, Graduate School of Chinese Academy of Sciences, Beijing 100049, China 3. Institute of Archaeology, Chinese Academy of Social Sciences, Beijing 100710, China 4. The Laboratory of Archaeometry, University of Science and Technology of China, Hefei 230026, China
Abstract：Based on the analysis of Raman,IR spectroscopy and XRD methods, the structure of the different pigments and bond in red pigment in the ceramic from Taosi site in Xiangfeng county, Shanxi province was analyzed. It is very prominent that both red and white pigments have been well preserved. The red pigment was identified as HgS, while white pigment is CaCO3, and the bond in red pigment is CaCO3, which was made from white lime, and the reasons for its formation is because of carbon dioxide in air, which was absorbed by white lime over long history. Moreover, it was indicated that the Raman and IR spectra are more effective for identifying the ancient pigments in very few quantities than XRD. Furthermore, the fact that quartz was unfound in vermilion, suggested that the technique for synthetic vermilion might have been known in 4 000 years ago in Taosi site.
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