| Location: | Guanacaste, Costa Rica, North America |
| Lat / long: | 10.41773, -84.98606 |
| dep_id: | 10007887 |
| mrds_id: | CS00121 |
| Commodity type: | metallic |
| Major mineral: | Gold |
| Minor mineral: | Silver |
| Operation type: | Unknown |
| Production size: | No production occurred |
| Development status: | Occurrence |
| ore: | Electrum |
| gangue: | Calcite, Chalcopyrite, Pyrite, Quartz, Sphalerite |
| orebody_fm: | VEIN |
| model: | 151: Epithermal vein, Sado |
| alteration: | Replacement And Veining Of Andesite By Calcite And Epidote; Phenocrysts Replaced By Sericite; Chlorite In Groundmass. Pervasive Silicification. |
| ore_ctrl: | Changes In Strike Of The Faults Apparently Had Little Or No Effect On Where Quartz Was Deposited, But The Veins Are Widest In The Steepest Parts Of Their Host Fissures. The Distribution Of Gold Within The Quartz Shows An Even Weaker Relationship To Structure. |
| Reporter: | Howe, Stephen S. (Cox, Dennis P.), Mosier, Dan |
| hrock_unit: | Monteverde;Monteverde |
| hrock_type: | Andesite |
| arock_unit: | Monteverde;Monteverde;Monteverde |
| arock_type: | Rhyolite |
| Structure: | N- And Ne-Trending Faults |
| Year first produced: | 1910 |
| References: |
- Deposit:: BENNETT, EVAN, 1939, GOLD MINING IN COSTA RICA: ENG. MIN. J., V. 140, NO. 1, P. 56-58.
- Deposit:: WILLIAM BENNETT, OWNER, ORAL COMMUNICATION, 1986.
- Deposit:: ORGANIZACION DE LOS ESTADOS AMERICANOS, 1978, DIAGNOSTICO DEL SECTOR MINERO: SAN JOSE, ORGANIZACION DE LOS ESTADOS AMERICANOS, 91 P.
- Deposit:: U.S. GEOLOGICAL SURVEY, DIRECCION GENERAL DE GEOLOGIA, MINAS E HIDROCARBUROS, UNIVERSIDAD DE COSTA RICA, 1987, MINERAL RESOURCE ASSESSMENT OF THE REPUBLIC OF COSTA RICA: U.S. GEOLOGICAL SURVEY MISCELLANEOUS INVESTIGATION SERIES MAP I-1865, 75 P.
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