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Uchucchacua Mine, Oyon Province, Lima Department, Peru

This page kindly sponsored by Frank Keutsch
Latitude & Longitude (WGS84): 10° 37' 23'' South , 76° 41' 17'' West
Latitude & Longitude (decimal): -10.62306,-76.68833
Köppen climate type:ET : Tundra

Uchucchacua mine is very close to the Raura mine in Cajatambo province, leading to label confusion.

Complex vein mineralization related to a dacitic intrusion cutting through Cretaceous and Tertiary formations on West side of Occidental Cordillera of Central Andes.

Mine Type/Method: Cut and fill[1] serviced by 2 vertical shafts exceeding 1.0 km depth, and a 4.6 km drainage tunnel.

Geology: A hydrothermal epigenetic deposit of landfill fractures, which were also transportation channels and metasomatic emplacements of mineralization that finally formed the present ore bodies. The principal commercial mineralization consists of silver, but zinc and lead are also extracted as by-products. Gangue minerals include calcite, kutnohorite, rhodochrosite, and quartz. Mineralization is located in limestones of the early Cretaceous.

Stress redistribution as a result of mining is responsible for the activation of a complex structural system of faults resulting in rockbursts at mine depths over 1 km (as of 2008).

Vizquerra Benavides (2006) mentions the active Carmen Lucrecia and Huantajalla Ag-Pb-Zn mines, the Mercedes ore body (discovered after 2003) and the Pozo Rico exploration project, hosted in carbonate rocks of the Jumasha Formation (at intersection of Mercedes ore body with the Pozo Rico fault).

Mineral List

62 valid minerals. 8 (TL) - type locality of valid minerals. 1 erroneous literature entry.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

Cretaceous - Jurassic
66 - 201.3 Ma

ID: 3189040
Mesozoic sedimentary rocks

Age: Mesozoic (66 - 201.3 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License

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.


Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Oudin, E., Picot, P., Pillard, F., Moëlo, Y., Burke, E. A. J., Zakrzewski, M. A. (1982): La bénavidésite, Pb4(Mn,Fe)Sb6S14, un nouveau minéral de la série de la jamesonite. Bulletin de Minéralogie 105, 166-169.
Bulletin de Minéralogie (1984): 107: 597-604.
Economic Geology (1990): 85(7) (November 1990): 1348-1383.
Mineralogical Record (1997): 28: 58-61.
Hyrsl & Rosales (2003), Mineralogical Record: 34: 241-254.
The Mineralogical Record (2004): 35(2): 153.
Vizquerra Benavides, J.A. (2006): Preliminary geochemical, petrological and mineralogical investigation of the high-grade Ag-Pb-Zn Pozo-Rico, Uchucchacua, Peru. Unpublished masters thesis, Queen’s University, Kingston, ON, Canada, 205 pp.
Lapis (2010): 35(12): 40.
Bonazzi, P., Bindi, L. and Keutsch, F.N. (2011), Manganoquadratite, IMA 2011-008. CNMNC Newsletter No. 10, October 2011, page 2550.
Jaroslav Hyrsl, Jack A.Crowley, Rock H.Currier, Terry Szenics.(2011): PERU - PARADISE OF MINERALS. 544 pp. [Uchucchacua Mine: p. 219}
Bindi, L., Keutsch, F.N., Bonazzi, P. (2012): Menchettiite, AgPb2.40Mn1.60Sb3As2S12, a new sulfosalt belonging to the lillianite series from the Uchucchacua polymetallic deposit, Lima Department, Peru. American Mineralogist, 97, 440-446.
Bonazzi, P., Bindi, L. and Keutsch, F.N. (2012): Manganoquadratite, AgMnAsS3, a new manganese-bearing sulfosalt from the Uchucchacua polymetallic deposit, Lima Department, Peru: Description and crystal structure. American Mineralogist, 97, 1199-1205.
Bindi, L., Keutsch, F.N. and Zaccarini, F. (2016) Spryite, IMA 2015-116. CNMNC newsletter No. 30, April 2016, page 412; Mineralogical Magazine, 80, 407–413.

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