| Lat / long: | 33.21177, -109.36454 |
| Primary: | Gold, Lead |
| Secondary: | Silver, Copper |
| Tertiary: | Zinc |
| Ore: | Anglesite, Galena, Vanadinite, Wulfenite |
| Gangue: | Calcite, Magnetite, Pyromorphite |
| Orebody form: | IRREGULAR |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Producer |
| First production started: | 1915 |
| Last production ended: | 1948 |
| Host rock: | Longfellow Limestone;Coronado Quartzite;Pinal Schist |
| Host type: | Schist |
| Associated rock: | Andesite And Rhyolite Volcanics |
| Associated type: | Rhyolite |
| Structure: | Ne Trending Fault, Block Faulting With 500-600 Ft Downthrow On West Side Of Twig Mine Deposits |
| Tectonic: | Transition Zone Between Basin And Range And Colorado Plateau Provinces |
| Alteration processes: | Contact Alterration Of Precambrian Sediments To Metaquartzite Schist Host Rock |
| MRDS | M800164 |
| DEP | 10048132 |
| Reference | {Deposit:: ABGMT-USBM FILE DATA.}{Deposit:: MOOLICK, R.T., AND DUREK, J.J., 1966, THE MORENCI DISTRICT, IN GEOLOGY OF THE PORPHYRY COPPER DEPOSITS, EDITED BY TITLEY AND HICKS.}{Deposit:: USGS PROFESSIONAL PAPER 43 (1905).}{Deposit:: ARIZONA DEPARTMENT OF MINERAL RESOURCES FILE DATA.}{Other Database:: CIMRI} |
| Reporter | Orris, Greta J., Calder, Susan R. |