Characterization of Kangxi Coins of Tsing Empire by SEM-EDS

摘要

The major and minor elements Cu, Zn, Sn, Pb and Fe of coins issued in the Kangxi dynasty of Tsing Empire were analyzed by X-Ray energy dispersive spectrometry using a scanning electron microscope (SEM-EDS). This paper presents the characteristic concentration of elements in the coins, and may act as a criterion for other coins dating back to the Kangxi dynasty. The 73 coins were classified in three groups according to the results. Group 1 with good fineness represents the coins minte din 'Yunnan' proivnce and some cois for special purpose such as the celebration of Kangxi emperor's birthday; groups 2 and 3 represent the coins issued before and after 1684 AD, respectively.