Freibergite Subgroup from selected localities.
USA | |
| MRDS database Dep. ID file #10048349, MRDS ID #M899936. |
| Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 59 (Table 4); Schrader (1915): 253-254; Arizona Bureau of Mines file data. |
Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 60 (Table 4); Schrader (1915): 248-251; Arizona Bureau of Mines file data. |