Arroyo del Valle, Puerto de la Cruz Verde, San Lorenzo de El Escorial, Community of Madrid, Spaini
| Regional Level Types | |
|---|---|
| Arroyo del Valle | - not defined - |
| Puerto de la Cruz Verde | - not defined - |
| San Lorenzo de El Escorial | Municipality |
| Community of Madrid | Autonomous Community |
| Spain | Country |
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Latitude & Longitude (WGS84):
40° 33' 57'' North , 4° 11' 30'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Zarzalejo | 1,327 (2012) | 2.2km |
| San Lorenzo de El Escorial | 17,889 (2012) | 4.7km |
| El Escorial | 14,979 (2010) | 5.7km |
| Santa María de la Alameda | 992 (2011) | 6.4km |
| Peguerinos | 346 (2018) | 7.5km |
Name(s) in local language(s):
Arroyo del Valle, Puerto de la Cruz Verde, San Lorenzo de El Escorial, Madrid, España
Magnesite outcrop originated by hydrothermal alteration of dolomite rocks including chrysotile, talc, serpentine and pyrite.
Quarry located in an old magnesite mining area, that were exploited in underground galleries, in which some remains of quarries and surface installations can be seen. The mineralization covers a wide area that covers three adjoining municipalities: San Lorenzo del Escorial, Zarzalejo and Santa María de la Alhameda. The area acquired interest at the beginning of the 20th century. Although it is currently inactive, up to 30 tons per day were exploited in the 1970s.
Cantera situada en el área de unas antiguas minas de magnesita que fueron explotadas en galerías subterráneas, de las que pueden verse algunos restos de canteras e instalaciones en superficie. La mineralización abarca un amplia área que cubre tres municipio colindantes: San Lorenzo del Escorial, Zarzalejo y Santa María de la Alhameda. La zona adquirió interés a comienzo del siglo XX. Aunque en la actualidad se encuentra inactiva, se llegaron a explotar hasta 30 toneladas diarias en los años 1970´s.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Chrysotile Formula: Mg3(Si2O5)(OH)4 |
| ⓘ Magnesite Formula: MgCO3 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 References: |
| ⓘ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 |
| ⓘ Talc Formula: Mg3Si4O10(OH)2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Magnesite | 5.AB.05 | MgCO3 |
| Group 9 - Silicates | |||
| ⓘ | Chrysotile | 9.00. | Mg3(Si2O5)(OH)4 |
| ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
| Unclassified | |||
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| C | Carbon | |
| C | ⓘ Magnesite | MgCO3 |
| O | Oxygen | |
| O | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| O | ⓘ Magnesite | MgCO3 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Mg | Magnesium | |
| Mg | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| Mg | ⓘ Magnesite | MgCO3 |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Si | Silicon | |
| Si | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
| Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
Other Regions, Features and Areas containing this locality
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References
speleominas.blogspot.com (n.d.) http://speleominas.blogspot.com/2011/10/mina-de-magnesita-subterranea-del.html
Arroyo del Valle, Puerto de la Cruz Verde, San Lorenzo de El Escorial, Community of Madrid, Spain