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Santa Clara Mine, Esparza Canton, Puntarenas Province, Costa Ricai
| Regional Level Types | |
|---|---|
| Santa Clara Mine | Mine |
| Esparza Canton | Canton |
| Puntarenas Province | Province |
| Costa Rica | Country |
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Latitude & Longitude (WGS84):
10° 0' 33'' North , 84° 36' 40'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Macacona | 840 (2016) | 3.2km |
| Esparza | 15,575 (2016) | 6.1km |
| Desamparados | 14,448 (2018) | 13.4km |
| Orotina | 6,135 (2016) | 14.5km |
| Miramar | 6,540 (2018) | 15.9km |
Other/historical names associated with this locality:
Macacona Mine
Name(s) in local language(s):
Mina Santa Clara (Mina Macacona), Provincia de Puntarenas, Costa Rica
A gold property located 65 km W of San José in Macacona district, canton of Esparza, Puntarenas province.
Minera Macacona Ltda., a joint venture of United Hearne Resources (60%) & Canadian Barranca Corp. Ltd. (40%), began its evaluation of the Santa Clara deposit in 1975. The open pit gold mine was opened in February 1981 with a 500 tons/day ore feed capacity. Gold production through April 1988 totals 39,000 ounces. The mine closed in August 1989, after oxide reserves were exhausted. A 1988 reserve evaluation reports 2,925,000 tons of 0.053 opt gold in the Santa Clara mine area. Most of this reserve is unoxidized.
Santa Clara is a shallow epithermal vein and weak vein stockwork hosted by the Mio-Pliocene Aguacate Formation. Host rocks include basaltic andesite tuff breccias and flows. Ore is hosted by a steeply dipping fault and hanging-wall splits and is oxidized to a depth of 50 m or more. Free gold is associated with limonite and pyrolusite in a gangue of vuggy, crustiform banded, chalcedonic quartz-filled veins and fault breccias. Beneath the oxidized zone, gold is associated with pyrite and minor chalcopyrite and covellite.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Arsenic Formula: As Description: Found by Daniele Trogolo Got in 1988 References: |
| ⓘ Arsenolite Formula: As2O3 Description: Found by Daniele Trogolo Got in 1988 References: |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Covellite Formula: CuS |
| ⓘ Dolomite Formula: CaMg(CO3)2 References: |
| ⓘ 'Limonite' |
| ⓘ Marcasite Formula: FeS2 |
| ⓘ Native Gold Formula: Au References: |
| ⓘ Pararealgar Formula: As4S4 Description: Found by Daniele Trogolo Got in 1988 References: |
| ⓘ Pyrite Formula: FeS2 References: |
| ⓘ Pyrolusite Formula: Mn4+O2 |
| ⓘ Quartz Formula: SiO2 References: |
| ⓘ Quartz var. Chalcedony Formula: SiO2 |
| ⓘ Realgar Formula: As4S4 Description: Found by Daniele Trogolo Got in 1988 References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| ⓘ | Arsenic | 1.CA.05 | As |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Covellite | 2.CA.05a | CuS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| ⓘ | Realgar | 2.FA.15a | As4S4 |
| ⓘ | Pararealgar | 2.FA.15b | As4S4 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Arsenolite | 4.CB.50 | As2O3 |
| ⓘ | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | Pyrolusite | 4.DB.05 | Mn4+O2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Dolomite | CaMg(CO3)2 |
| O | Oxygen | |
| O | ⓘ Arsenolite | As2O3 |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Pyrolusite | Mn4+O2 |
| O | ⓘ Quartz | SiO2 |
| Mg | Magnesium | |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Si | Silicon | |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Covellite | CuS |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Pararealgar | As4S4 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Realgar | As4S4 |
| Ca | Calcium | |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Mn | Manganese | |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Covellite | CuS |
| As | Arsenic | |
| As | ⓘ Arsenolite | As2O3 |
| As | ⓘ Arsenic | As |
| As | ⓘ Pararealgar | As4S4 |
| As | ⓘ Realgar | As4S4 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Regions, Features and Areas containing this locality
Central AmericaRegion
North America
- Central AmericaSubregion
North America Plate
- Central American ArcVolcanic Arc
Panama PlateTectonic Plate
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Santa Clara Mine, Esparza Canton, Puntarenas Province, Costa Rica