自然铜 (自然銅) zìrántóng
          
              zìrántóng 
              
              noun 
              natural copper; chalcopyrite; copper iron sulfide CuFeS2 
              Domain: Modern Chinese 现代汉语
              
                , Subdomain:  
              
              
                , Concept:  
              
              
              
                Notes: (CC-CEDICT '自然銅')