| Lat / long: | -26.83081, -69.26618 |
| Primary: | Silver, Gold |
| Ore: | Argentite, Bornite, Cerargyrite, Chalcocite, Chalcopyrite, Covellite, Electrum, Embolite, Enargite, Galena, Gold, Pyrite, Silver, Sphalerite, Tennantite, Tetrahedrite |
| Gangue: | Alunite, Barite, Dickite, Gypsum, Illite, Jarosite, Kaolinite, Sericite |
| Orebody form: | SEMITABULAR, MUSHROOM-SHAPED |
| Discovery year: | 1981 |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Producer |
| Host type: | Sandstone |
| Associated type: | Dacite |
| Tectonic: | Andean Cordillera |
| Alteration processes: | Silicification Occurs In Brecciated Zones, Is Dominant In Upper Parts Of Coipa Norte; Advanced Argillic (Alunite-Kaolinite-+/- Dickite-Quartz) Associated With High Grade Au In Coipa Norte And Farellon, In Deep Part Of Ladera; Occurs As Stockwork Veins; Intermediate Agrillic (Illite-Smectite +/- Sericite) Peripherial To Ore Zones (Some Ag-Rich Lenses In Clays); Vuggy Silica, Dominant Above Ladera Ore Body; Supergene (Jarosite-Goethite +/- Gypsum +/- Barite). |
| MRDS | TC03761 |
| DEP | 10058035 |
| Reference | {Analytical Data:: OVIEDO AND OTHERS (1991)}{Deposit:: RUIZ, C. Y PEEBLES, F., 1988, YACIMIENTOS METALIFEROS DE CHILE: SANTIAGO, 334 P.}{Deposit:: MINING ENGINEERING, 1990 (JULY), P. 667.}{Deposit:: DIAZ, ET AL., 1980, MAPA METALOGENICO PRONOSTICO DE LA III REGION: CORPORACION DE FOMENTO DE LA PRODUCCION, SANTIAGO (5 VOLS.).}{Deposit:: ELEVATORSKI, E.A., WORLD GOLD: MINES-DEPOSITS-DISCOVERIES, VOL. 1: NORTH, CENTAL, AND SOUTH AMERICA: MINOBRAS MINING SERVICES.}{Deposit:: SILLITOE, R.H., 1991, GOLD METALLOGENY OF CHILE - AN INTRODUCTION: ECONOMIC GEOLOGY, V. 86, NO. 6, P. 1187-1205.}{Deposit:: OVIEDO, L., FUSTER, N. TSCHISCHOW, N., RIBBA, L., ZUCCONE, A., GREZ, E., AND AGUILAR, A., 1991, GENERAL GEOLOGY OF LA COIPA PRECIOUS METAL DEPOSIT, ATACAMA, CHILE: ECONOMIC GEOLOGY, V. 86, NO. 6, P. 1287-1300.}{Other Database:: CIMRI}{Reserve-Resource:: MINING ENGINEERING, 1990; SILLITOE (1991); OVIEDO AND OTHERS (1991)} |
| Reporter | Williams, William C., Page, Norman J. |