Copper from Turquoise Mining District (Courtland-Gleeson Mining District), Cochise County, Arizona, USA
USA | |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 185. |
| Luetcke, Rolf (n.d.) Personal communication. |
Copper Handbook 1911 | |
Luetcke, Rolf (n.d.) Personal communication. |
Last Chance Mine, Casey Hill, Courtland, Turquoise Mining District, Cochise County, Arizona, USA