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Manuel-Mercedes open pit, Cala Mines, Cala, Huelva, Andalusia, Spain

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Location is approximate, estimate based on other nearby localities.
Latitude & Longitude (WGS84): 37° North , 6° West (est.)
Margin of Error:~96km
Other regions containing this locality:Iberian Peninsula
Köppen climate type:Csa : Hot-summer Mediterranean climate
Name(s) in local language(s):Corta Manuel-Mercedes, Minas de Cala, Cala, Huelva, Andalucia, España

From a geological point of view, the deposit of the Cala Mine is located in the south flank of the (antiform) Olivenza-Monesterio, inside of the zone Ossa-Morena. In this area, Palaeozoic rocks were affected by Hercynian tectonics. The granitic intrusions were accompanied by contact metamorphism (skarn formation) with important deposits of magnetite.

Cala is included in Sierra de Aracena range, a part of Sierra Morena range.

Recent analysis (XRD) have confirmed again the presence of ferropargasite in this locality (green sprays as seen in the pictures). It must be said that there is no a complete certainty because with complex amphiboles like these further analysis would be neccessary (Polarised-light microscopy and EPMA).

Mineral List

28 valid minerals.

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


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- Econ Geol (1981) 76:719-727
- García, M., García, G. and Calvo, M. (2003) Minas de Cala. El hierro con cobre. Bocamina (12), 48-81
- Calvo, M. (2003) Minerales y Minas de España, Vol 2. Diputación Foral de Alava. 705 pages.

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