Domain structures and copper vacancies in natural low-djurleite (Cu_(1.93)S)

作     者：SUN Tao & XUE JiyueDepartment of Earth Sciences. Nanjing University. Nanjing 210093. China 

作者机构：Department of Earth Sciences Nanjing University Nanjing China 

出 版 物：《Chinese Science Bulletin》 (Chin. Sci. Bull.)

年 卷 期：2001年第46卷第6期

页      面：502-504页

核心收录：

学科分类：070902[理学-地球化学] 0709[理学-地质学] 07[理学] 

基　　金：the National Natural Science Foundation of China (Grant No. 49772100) 

主　　题：djurleite HRTEM images domain structure copper vacancies Dongxiang in Jiangxi Province. 

摘      要：Based on HRTEM studies, the domain structure and the copper vacancy model of Dongxiang low-djurleite are discussed. The HRTEM images show: ( i ) The domain structures are the intergrowth between djurleit (dj) and digenite (dg) on nm scale. Although there is a transition area which appears as hexagonal-chalcocite-like structure between them, they still follow orientation relationship of (100)dj//(111)dg. (ii) 1.56%-3.12% vacancies of Cu are present in low-djurleite. There are 1-2 Cu vacancies aver-agely in every b0/2 of the unit cell. This ratio is coincident to the composition of djurleite (Cu1.93-1.97S)