Chalcocite from selected localities.
USA | |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 163; Univ. of AZ Bull. 41 (1916-17), Mineralogy of Useful Minerals in AZ: 28. |
| Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geol. Sur. Br. Bull. 192, Index of Mining Properties in Yuma Co., Arizona: 158 (Table 4); Arizona Bureau of Mines file data. |