Copper Stain from Gila County, Arizona, USA
USA | |
| Ross, Clyde P. (1925a) Ore deposits of the Saddle Mountain and Banner Mining Districts, Arizona. USGS Bull. 771. |
| Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 110. |
| Peterson, N.P. (1963), Geology of the Pinal Ranch quadrangle, USGS Bull. 1141-H: H14. |