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Almadén

Almadén
Municipality
Flag of Almadén
Flag
Coat of arms of Almadén
Coat of arms
Almadén is located in Spain
Almadén
Almadén
Location in Spain
Coordinates: 38°46′35″N 4°50′13″W / 38.77639°N 4.83694°W / 38.77639; -4.83694Coordinates: 38°46′35″N 4°50′13″W / 38.77639°N 4.83694°W / 38.77639; -4.83694
Country  Spain
Autonomous community Castile-La Mancha
Province Ciudad Real
Comarca Almadén (comarca)
Government
 • Alcalde Carlos Rivas Sanchez (2011)
Area
 • Total 239.64 km2 (92.53 sq mi)
Elevation 589 m (1,932 ft)
Population (2008)
 • Total 6,288
 • Density 26/km2 (68/sq mi)
Demonym(s) Almadenense, sa
Time zone CET (UTC+1)
 • Summer (DST) CEST (UTC+2)
Postal code 13400
Official name Heritage of Mercury. Almadén and Idrija
Type Cultural
Criteria ii, iv
Designated 2012 (36th session)
Reference no. 1313
State Party Spain
Region Europe and North America

Almadén (Spanish pronunciation: [almaˈðen]) is a town and municipality in the Spanish province of Ciudad Real, within the autonomous community of Castile-La Mancha. The town is located at 4° 49' W and 38° 46' N and is 589 meters above sea level. Almadén is approximately 300 km south of Madrid in the Sierra Morena. The name Almadén is from the Arabic word المعدن al-maʻdin, meaning 'the mine'.

Originally a Roman (then Moorish) settlement, the town was captured in 1151 by Alfonso VII and given to the Knights of the Order of Calatrava.

The mercury deposits of Almadén account for the largest quantity of liquid mercury metal produced in the world. Approximately 250,000 metric tons of mercury have been produced there in the past 2,000 years.

The geology of the area is characterised by volcanism. Almadén is home to the world's greatest reserves of cinnabar, a mineral associated with recent volcanic activity, from which mercury is extracted. Cinnabar was first used for pigment by the Romans. Later, the mineral was used mostly in medicine and alchemy during the Arab domination of Spain.

The Fuggers of Augsburg, two German bankers, administered the mines during the 16th and 17th centuries in return for loans to the Spanish government. Mercury became very valuable in the Americas in the mid 16th century due to the introduction of amalgamation, a process that uses mercury to extract the metals from gold and silver ore. The demand for mercury grew, and so did the town's importance as a center of mining and industry. Most of the mercury produced at this time was sent to Seville, then to the Americas.


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