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Santa Rosa-Huantajaya District, Iquique Province, Tarapacá Region, Chile

Vein-type silver deposits, hosted by Middle to Late Jurassic limestone strata that are intruded by dioritic and andesitic dykes and sills with local skarn development.

The Santa Rosa-Huantajaya district is an old mining district, which has been exploited intermittently since colonial times. It was an important silver producer by the end of the 19th century and in the early 20th century, but has been abandoned since 1942.

The deposits were explored to a depth of around 500 m. The exploited ores came mainly from the oxidation zone, which extends to a depth of around 100 m, and from a well-developed supergene enrichment sulphide zone, extending from 100 m to 400 m depth. The hypogene sulphide ores occurring below were not extensively mined.

Mineral List

Mineral list contains entries from the region specified including sub-localities
Acanthite
Anhydrite
Aragonite
Arsenopyrite
Atacamite
Azurite
Boleite
Calcite
Chalcocite
Chalconatronite
Chalcopyrite
Chlorargyrite
Chrysocolla
Clinotyrolite
Covellite
Dolomite
Enargite
Galena
Gypsum
Halite
Juangodoyite (TL)
Limonite
Malachite
Marshite
var: Cupro-iodargyrite

Mimetite
Nahcolite
Pyrite
Sanrománite (TL)
Santarosaite (TL)
Schwartzembergite ?
Sideronatrite (TL)
Silver
Sphalerite
Stromeyerite
Tetrahedrite
var: Argentian Tetrahedrite

Trona
Tyrolite
Wulfenite


39 entries listed. 34 valid minerals. 4 type localities (valid minerals).

Localities in this Region

Chile

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References

- Maksaev, V., Townley, B., Palacios, C., and Camus, F. (2007): Metallic ore deposits. In: Moreno, T., and Gibbons, W. (editors): The Geology of Chile. The Geological Society (London), pp. 414.

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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