La Campa mine, Santa Eufemia, Folgoso do Courel, Quiroga, Lugo, Galicia, Spaini
| Regional Level Types | |
|---|---|
| La Campa mine | Mine (Active) |
| Santa Eufemia | Village |
| Folgoso do Courel | Municipality |
| Quiroga | Comarca |
| Lugo | Province |
| Galicia | Autonomous Community |
| Spain | Group of Countries |
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Latitude & Longitude (WGS84):
42° 34' 34'' North , 7° 12' 6'' West
Latitude & Longitude (decimal):
Area:
1.0 km2
Type:
Mine (Active) - last checked 2020
Deposit first discovered:
Before 1997
Age:
458.4 ± 0.9 to 443.8 ± 1.5 Ma
Geologic Time:
Reference for age:
Mapa Geol
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Quiroga | 4,122 (2012) | 12.6km |
| Incio | 2,317 (2012) | 13.7km |
| A Pobra do Brollon | 2,372 (2015) | 15.7km |
| Barjas | 355 (2012) | 18.6km |
| Oencia | 579 (2012) | 19.4km |
Mindat Locality ID:
344161
Long-form identifier:
mindat:1:2:344161:2
GUID (UUID V4):
2069818a-f146-42d5-9776-079ee0d00308
Other/historical names associated with this locality:
La Campa quarry/Ultransa quarry
Open pit and underground mine set into the municipality of Folgoso do Courel, near Quiroga, in the province of Lugo (Galicia).
Quarry opened since at least 2000 to mine a layer of high quality slate used for roofing, the Pizarras de Luarca Formation (Late Ordovician age). It began as an open pit but in 2006 it started the development of the underground mine, active nowadays. The destination of the slate produced is for roofing buildings in Europe.
Slate deposits don´t use to give interesting minerals and crystals, due to the plastic behaviour of the slate under strains, but other rocks common in these deposits (sandstone, quartzite) have a brittle behaviour and are able to present small cracks and cavities when deformed, with small crystals on them.
All the samples were collected from 2008 to 2016 by Víctor Pais, geologist of the company that operates the mine, during the works of development of the underground mine and preparation of the quarry, when the upper sandstone were cut with blastings (now hanged more than 50 m over the quarry).
So difficult (almost impossible) to find new specimens there nowadays even though the mine keeps on working, because the upper sandstone is not cut anymore.
Victor Pais: vpaisdiz@yahoo.es
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Albite Formula: Na(AlSi3O8) References: |
| ✪ Anatase Formula: TiO2 Colour: Blue, grey and black Description: Not frequent but it has appeared in several fauls. In Alpine cracks with quartz, chlorite and carbonate.
Three different kinds of crystals:
Blue crystals in an almost vertical North-South fault that cuts the deposit, associated with quartz, chlorite, clinochlore and dolomite. The biggest crystals, usually from 2 to 5 mm long. Clear, transparent and deep blue crystals double terminated.
Grey crystals in a fault similar to blue ones. Smaller crystals, 1-2 mm long. Dark grey colour and with less development of the c-axis.
Black crystals. Less frequent and associated with quartz, siderite, calcite in a mineralisation paralell to the sandstone layer. Smaler ones, about 1-2 mm. References: |
| ⓘ Arsenopyrite Formula: FeAsS Description: Very small pyramids usually into the rock matrix, and just a little samples of isolated crystals (about 1 mm). References: |
| ⓘ Brookite Formula: TiO2 References: |
| ⓘ Calcite Formula: CaCO3 References: |
| ⓘ Chalcopyrite Formula: CuFeS2 References: |
| ⓘ 'Chlorite Group' References: |
| ⓘ Clinochlore Formula: Mg5Al(AlSi3O10)(OH)8 References: |
| ⓘ Dolomite Formula: CaMg(CO3)2 References: |
| ⓘ Pyrite Formula: FeS2 References: |
| ⓘ Quartz Formula: SiO2 References: |
| ⓘ Rutile Formula: TiO2 References: |
| ✪ Siderite Formula: FeCO3 References: |
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| ⓘ | Anatase | 4.DD.05 | TiO2 |
| ⓘ | Brookite | 4.DD.10 | TiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| Group 9 - Silicates | |||
| ⓘ | Clinochlore | 9.EC.55 | Mg5Al(AlSi3O10)(OH)8 |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| C | ⓘ Siderite | FeCO3 |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Anatase | TiO2 |
| O | ⓘ Brookite | TiO2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Siderite | FeCO3 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Mg | Magnesium | |
| Mg | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Ti | Titanium | |
| Ti | ⓘ Anatase | TiO2 |
| Ti | ⓘ Brookite | TiO2 |
| Ti | ⓘ Rutile | TiO2 |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Siderite | FeCO3 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
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