Magnetite from selected localities.
USA | |
| Keith, Stanton B. (1973), Arizona Bureau of Geology & Mineral Technology, Geol. Sur. Branch Bull. 187, Index of Mining Properties in Cochise Co., AZ: 68 (Table 4); Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 284; Univ. of AZ Bull. 41 (1916-17), Mineralogy of Useful Minerals in AZ: 40, 43. |
Gilluly, J. (1956), USGS PP 281: 80-81. |
Black Diamond Mine, Middle Pass Mining District, Cochise County, Arizona, USA