Psilomelane from selected localities.
USA | |
| MRDS database Dep. ID file #10048355, MRDS ID #M899943. |
| Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 57 (Table 4); Schrader (1915): 278-279; Arizona Bureau of Mines file data. |
| Wilson, E.D. & G.M. Butler (1930), Manganese ore deposits in AZ, AZ Bur. Mines Bull. 127: 91-92; Jones, E.L., Jr. & F.L. Ransome (1920), Deposits of manganese ore in Arizona, USGS Bull. 710-D: 176. |
| Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582: 274. |
MRDS database Dep. ID file #10048336, MRDS ID #M899920. | |
Wilson, E.D. & G.M. Butler (1930), AZ Bur. of Mines Bull. 127, Manganese ore deposits in AZ: 93; Jones, E.L., Jr. & F.L. Ransome (1920), Deposits of manganese ore in Arizona, USGS Bull. 710-D: 176. |
Hardshell Mine, Hardshell Gulch, Harshaw, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA