Pyrite from Mildred Peak, Baboquivari Mining District, Baboquivari Mountains, Pima County, Arizona, USA
USA | |
| [var. Gold-bearing Pyrite] (n.d.) ADMMR Mines Database, Arizona Geological Survey. Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 109 (Table 4) Wilson, E.D. (1934)(revised 1967): 181 |