Collahuasi mine
{{Short description|Copper mine in Chile}}
{{Infobox Mine
| name = Collahuasi mine
| image =
| width =
| caption =
| pushpin_map = Chile
| pushpin_label =
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| coordinates ={{coord|20|59|29.19|S|68|38|19|W|region:CL|format=dms|display=inline,title}}
| place =
| subdivision_type = Region
| state/province = Tarapacá Region
| country = Chile
| owner = Anglo American plc (44%)
Glencore (44%)
Mitsui & Co. (12%)
| stock_exchange =
| stock_code =
| official website =
| acquisition year =
| products = Copper
Molybdenum
| financial year =
| amount =
| opening year =
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}}
The Collahuasi/Ujina mine is a large copper mine located at {{cvt|4200|m|ft}} altitude in the north of Chile in the Tarapaca Region. Collahuasi represents one of the largest copper reserves in Chile and in the world having estimated reserves of 3.93 billion tonnes of ore grading 0.66% copper.{{cite web|url=http://www.angloamerican.com/~/media/Files/A/Anglo-American-Plc/media/fact_book/copper_2012 |title=Copper mines|year=2011|publisher=angloamerican.com|accessdate=2013-07-06|archive-url= https://web.archive.org/web/20130202103617/http://www.angloamerican.com/~/media/Files/A/Anglo-American-Plc/media/fact_book/copper_2012 |archive-date=2013-02-02|url-status=dead}}
The mine produced 560,000 tonnes of copper in 2018, making it one of the world's largest copper mines.{{cite web | title=Chile’s Collahuasi copper mine expects to match 2018 record output this year – CEO | website=MINING.COM | date=2021-05-12 | url=https://www.mining.com/web/chiles-collahuasi-copper-mine-expects-match-2018-record-output-year-ceo/ | access-date=2022-07-22}}
File:Ferrocarril en el salar de Ascotán, Chile, 2016-02-09, DD 46.JPG ore train crossing the Ascotán salt flat at the mine]]
Climate
{{Weather box|width=auto
|metric first=y
|single line=y
|collapsed = Y
|location = Collahuasi, elevation {{convert|4800|m|ft|abbr=on}}
|Jan high C = 12.2
|Feb high C = 8.3
|Mar high C = 9.3
|Apr high C = 9.3
|May high C = 5.9
|Jun high C = 1.9
|Jul high C = 3.0
|Aug high C = 3.9
|Sep high C = 4.0
|Oct high C = 7.7
|Nov high C = 9.6
|Dec high C = 10.3
| year high C =
|Jan mean C = 3.5
|Feb mean C = 1.7
|Mar mean C = 1.3
|Apr mean C = 0.6
|May mean C = -2.6
|Jun mean C = -5.9
|Jul mean C = -4.0
|Aug mean C = -3.3
|Sep mean C = -2.8
|Oct mean C = -0.9
|Nov mean C = 0.0
|Dec mean C = 2.5
| year mean C =
|Jan low C = -1.5
|Feb low C = -1.4
|Mar low C = -3.1
|Apr low C = -4.4
|May low C = -7.0
|Jun low C = -10.4
|Jul low C = -9.1
|Aug low C = -8.3
|Sep low C = -8.4
|Oct low C = -6.3
|Nov low C = -5.7
|Dec low C = -2.7
| year low C =
|precipitation colour = green
|Jan precipitation mm = 5.5
|Feb precipitation mm = 5.1
|Mar precipitation mm = 2.5
|Apr precipitation mm = 0.0
|May precipitation mm = 0.0
|Jun precipitation mm = 4.5
|Jul precipitation mm = 0.0
|Aug precipitation mm = 0.0
|Sep precipitation mm = 10.0
|Oct precipitation mm = 2.5
|Nov precipitation mm = 0.0
|Dec precipitation mm = 5.0
|year precipitation mm =
|source 1 = Bioclimatografia de Chile{{cite web
| first1 = Ernst
| last1 = Hajek
| first2 = Francesco
| url = http://www.ecolyma.cl/documentos/bioclimatografia_de_chile.pdf
| title = Bioclimatografia de Chile
| access-date = 27 May 2024
| last2 = Castri
|archive-url = https://web.archive.org/web/20091122225453/http://www.ecolyma.cl/documentos/bioclimatografia_de_chile.pdf
|archive-date = 22 November 2009
| language = es
| year = 1975}}
}}