| Lat / long: | 31.61707, -110.79985 |
| Primary: | Lead, Copper, Silver |
| Secondary: | Gold, Zinc |
| Tertiary: | Manganese |
| Ore: | Bornite, Chalcopyrite, Galena, Pyrite, Sphalerite, Tetrahedrite |
| Gangue: | Biotite, Hornblende, Quartz |
| Orebody form: | TABULAR |
| Discovery year: | 1879 |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Producer |
| First production started: | 1881 |
| Last production ended: | 1951 |
| Host type: | Quartz Monzonite,Volcanic Breccia (Agglomerate),Quartz Latite,Plutonic Rock |
| Associated rock: | Mount Wrightson Formation;Temporal Formation |
| Associated type: | Rhyolite,Dacite |
| Structure: | Quartz Monzonite Is Intruded And Overlain By Rhyolite, Dominant Structure In Monzonite Dips 35e; Rhyolite Traversed By A Coarse Sheeting Which Dips 60w |
| Tectonic: | Mount Wrightson Fault Block |
| Alteration processes: | Wall Rocks Are Strongly Altered; Rhyolite Altered To Quartz |
| MRDS | M241330 |
| DEP | 10046337 |
| Reference | {Deposit:: ABGMT-USBM FILE DATA}{Deposit:: USBM FILES, MANSFIELD MINE GROUP}{Deposit:: ADMR FILE DATA, MANSFIELD MINE}{Deposit:: BLM DISTRICT MINING SHEET 687, 12) USGS PP 748, P. 14-15}{Deposit:: TENNEY, JAMES B., 1927-29, HISTORY OF MINING IN ARIZONA; ARIZONA BUREAU OF MINES, P. 317-318}{Deposit:: ROHRBACHER, ROBERT G. 1964, GEOLOGY OF THE TEMPORAL GULCH-MANSFIELD CANYON AREA SANTA CRUZ COUNTY ARIZONA; M.S. THESIS UNIVERSITY OF ARIZONA, P. 69}{Deposit:: USGS BULL 582, P. 226-229}{Deposit:: ARIZ BUR MINES BULL 191, P. 90, 11) USGS MAP I-614}{Deposit:: ABGMT FILES, STANTON B. KEITH}{Deposit:: ABGMT CLIPPINGS FILE; MANSFIELD MINING AND SMELTING CO., RUPERT GROUP} |
| Reporter | Calder, Susan R. |