Sphalerite from selected localities.
USA | |
| Wilson, E.D., et al (1951), Arizona zinc and lead deposits, part II, AZ Bur. Mines Bull. 158: 20. |
| Keith, Stanton B. (1973), Arizona Bureau of Mines Bull. 187, Index of Mining Properties in Cochise County, AZ: 81; Farnham, et al (1961): 39-40; Arizona Bureau of Mines files. |
Last Chance Mine, Casey Hill, Courtland, Turquoise Mining District, Cochise County, Arizona, USA