Escondida

Escondida is a copper mine at 3,100 metres (10,200 ft) elevation in the Atacama Desert in Antofagasta Region, Chile.

A barren, leached cap, in places up to 300 metres thick, overlies a thick zone of high grade secondary supergene mineralisation of the main orebody, largely chalcocite and covellite, which in turn overlies the unaltered primary mineralisation of chalcopyrite, bornite and pyrite.

[4] As of 2019, the known resource is 21.7 Billion tonnes at 0.54 percent Copper including Escondida and adjacent deposits.

It is also crushed and dumped on large heaps, but here the leaching occurs through oxidation induced by microorganisms.

[9] Construction of work force accommodation camps and field offices are needed services in order to have the mine operating, on this note Tecno Fast in 2012 was hired to build the second phase of the respective workforce accommodation camp for Escondida Mine.