Quartz from selected localities.
USA | |
| Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 117 (Table 4); Schrader (1915): 149; Arizona Bureau of Mines file data. |
Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 118 (Table 4); Schrader (1915): 149; Arizona Bureau of Mines file data. | |
| Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 118 (Table 4); Schrader (1915): 149; Arizona Bureau of Mines file data. |
[Chalcedony var: Carnelian] Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 348. | |
| Rolf Luetcke specimen |
Total Wreck Mine, Cienega Creek, The Narrows, Empire Mining District, Empire Mountains, Pima County, Arizona, USA