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zuo xi xi zhou yu qi di zhi kao gu xue yan jiu zhong guo gu yu di zhi kao gu xue yan jiu zhi san
Pages: 251-280+293-300
Year: Issue:  2
Journal: Acta Archaeologlca Sinica

Keyword:  透闪石软玉红外吸收光谱显微结构考古学研究阳起石玉器镁质大理岩古玉扫描电子显微镜;
Abstract: Jade is the characteristic mineral marking the development of ancient Chinese culture. True jade used popularly in the Neolithic and Bronze Ages is nephrite, It can be categoried into two type(?) with different geologic occurrences, i.e. nephrite in magnesian marble and that in serpentinized ultrabasic rocks. And nephrite produced in the mainland of China belongs mainly to the former, whileas that in other areas of the world, to the latter. In the present paper, mineralogical study is carried out on 40 jade articles representative in material and form, selected from the more than 1000 jades unearthed from the Fengxi site of the Western Zhou period (12th—8th c. BC). The composition is determined essentially by means of roomtemperature absorption infrared spectra, and the microstructure is observed through scanning electron microscopy (SEM). The sample applied to the two techniques is small in quantity, about 1mg for both. Based on these analyses, further analogy is made on unsampled jade articles through macroscopic identification. The jade objects from Fengxxi are dominanyl made of true jade (nephrite), occasionaily of pseudojade and 3 species of hemijade-intergrowth of nephrite and pseudojade. The material of the Fengxi jades is predominantly nephrite in magnesian marble, which contain also information about the localities of nephrite production known so far in the mainland of China. Furthermore, the paper discusses that the social hierarchic system stated in the Record of the Rites of the Zhou Dynastys-Jade Human Figures, in which the society was rigidly stratified as represented in the use of jade assem blages varying in the proportion of true jade to pseudojade, really existed in ancient China.
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