| Lat / long: | 31.50403, -110.75679 |
| Primary: | Copper |
| Secondary: | Gold |
| Gangue: | Sulfur |
| Orebody form: | IRREGULAR |
| Discovery year: | 1875 |
| Operation type: | Unknown |
| Production size: | Unknown |
| Development status: | Occurrence |
| Host type: | Rhyolite,Plutonic Rock |
| Associated rock: | Mountain Wrightson Formation;Josephine Canyon Diorite |
| Associated type: | Diorite,Trachyandesite |
| Structure: | General Structure Common To Regional Formations Is A Sheeting Which Dips 40 Nnw, Rhyolite Cut By Series Of Joints Dipping 25-30 Nnw, In Which There Is A Concentration Of Almost Pure Iron Sulfides In Veinlets Or Bands (Maximum Width 1.5 In) |
| Tectonic: | Alum Gulch And Red Mountain Fault Block |
| Alteration processes: | Surface Oxidation To Unknown Depths |
| MRDS | M899928 |
| DEP | 10048341 |
| Reference | {Deposit:: USBM FILES, INVINCIBLE PROSPECT}{Deposit:: ABGMT FILES, STANTON B. KEITH}{Deposit:: SCHRADER, FRANK C., 1915, MINERAL DEPOSITS OF THE SANTA RITA AND PATAGONIA MOUNTAINS, ARIZONA; USGS BULLETIN 582, P. 257}{Deposit:: ADMR FILE DATA, EXPOSED REEF AND BLUE EAGLE GROUPS}{Deposit:: SIMONS, FRANK S. 1974, GEOLOGIC MAP AND SECTIONS OF THE NOGALES AND LOCHIEL QUADRANGLES, SANTA CRUZ COUNTY, ARIZONA; USGS MAP I-762 (1:48000)} |
| Reporter | Calder, Susan R. |