Jade Composition of Archaic Jade Artifacts from Eastern Zhou Tomb in Jing'an, Jiangxi Province

In this paper,the jade compositions of thirteen archaic jade artifacts excavated from the Eastern Zhou Tomb in Jing'an,Jiangxi Province were,in terms of gemmology,petrology and physical spectroscopy,identified by means of naked-eye observation,gemmological microscope,IR spectrometer,laser Rarnan microspectrometer,XRD and SEM.This research is a project designated by Archaeological Institute of Jiangxi Province.The eleven atchaic jade artifacts are composed largely of tremolite-nephrite,but the remaining two,of tiny sandstone.In addition,this paper also reveals the relationship between the surface characteristics and the compositions and structures of these eleven tremolite-nephrite archaic jade artifacts.