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

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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 Tarapacá Region Iquique Province Santa Rosa-Huantajaya District Huantaca mine Pique del Llano mine San Agustín Mine San Simon Mine Santa Rosa Mine

References