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Almadén Mine, Almadén, Almadén District, Ciudad Real, Castile-La Mancha, Spain

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Latitude & Longitude (WGS84): 38° 46' 31'' North , 4° 50' 51'' West
Latitude & Longitude (decimal): 38.7752777778, -4.8475

A mercury mine started before 1850. Owned by Minas de Almadén.
Volcano-sedimentary Hg ores hosted in quartzite and volcanic rocks.

The name Almadén stems from the Arabic al-ma 'daniy 'yun, "the mine" or "the mineral".

Mineral List

26 valid minerals.

The above list 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.


- Mining Annual review (1985):119.
- Crawford, J.W. (1988). "Famous mineral localities: The Almaden mines Ciudad Real Spain." Mineralogical Record, 19(5), 297-302.
- Hall C. M., Higueras P. L., Kesler S. E., Lunar R., Dong H., Halliday A. N., 1997. Dating of alteration episodes related to mercury mineralization in the Almadén district. Earth Planet. Sci. Lett. 148, 287-298.
- Hernandez, A., Jébrak M., Higueras P., Oyarzun R., Morata D., Munhà J., 1999. The Almadén mercury mining district, Spain. Miner. Deposita, 34, 539-548.

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