Specularite from selected localities.
USA | |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 246, 298; Gilluly, J. (1937), AZ Bur. Mines Bull. 141: 68-75, 79-81; Gilluly, J. (1946), The Ajo mining district, Arizona, USGS PP 209: 90. |
Gilluly, J. (1946), The Ajo mining district, Arizona, USGS PP 209: 97. | |
Gilluly, J. (1946), The Ajo mining district, Arizona, USGS PP 209: 96. | |
| Gilluly, J. (1946), The Ajo mining district, Arizona, USGS PP 209: 94. |
Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 82 (Table 4); Gilluly (1946); Arizona Bureau of Mines file data. | |
Romslo, T.M.& C.S. Robinson (1952), Copper Giant deposits, Pima Co., AZ, US Bur. Mines Rept. Inv. 4850: 4. |