Provenite

Julcani Mine

MineActiveDraft data

12.9275° S, 74.7700° W · ± 10 km

Enargite from Huancavelica, Peru, with photos of specimens from this locality.

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Minerals found here

Enargite

Enargite at Julcani Mine

Cluster of lustrous dark gray enargite blades from the Julcani Mine.
Cluster of lustrous dark gray enargite blades from the Julcani Mine.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Prismatic enargite crystals coated with chalcopyrite from the Julcani Mine.
Prismatic enargite crystals coated with chalcopyrite from the Julcani Mine.
Photo: Kelly Nash · CC BY 3.0 · Source
Isolated lustrous enargite crystal of about 1.4 mm on chalcopyrite from the Julcani Mine.
Isolated lustrous enargite crystal of about 1.4 mm on chalcopyrite from the Julcani Mine.
Photo: Kelly Nash · CC BY 3.0 · Source
Formula
Cu₃AsS₄
Morphology
Prismatic crystals and blades, singly or in clusters, sometimes coated with chalcopyrite
Typical size
From isolated crystals of about 1.4 mm to clusters of about 3 cm
Color / luster
Dark gray, lustrous
Associated minerals
Chalcopyriteluzonitelimonite
Availability
Scarce
History
Enargite at Julcani is documented here only by specimen photo labels from two independent photographers; the operator's page does not list it.

Sources: SRC-650 SRC-659

About Enargite →

Geology of the locality

Setting
Epithermal fracture-filling silver deposit with Ag-Pb-Bi-Cu-W mineralization in veins with a NW-SE structural trend
Type
Hydrothermal
Host rock
Tertiary dacitic to rhyolitic domes
Region
Huancavelica
Country
Peru

Underground silver mine of Buenaventura in Ccochaccasa District, Angaraes Province, at about 4,200 m; operating since 1953. Coordinates are those of Ccochaccasa District (Spanish Wikipedia), so district level only.

Sources: SRC-650 SRC-651

Sources

  1. SRC-650 · Website
    JulcaniCompania de Minas Buenaventura · Buenaventura
  2. SRC-651 · Website
    Distrito de CcochaccasaWikipedia contributors · Wikipedia (Spanish)
  3. SRC-659 · Website
    File:Enargite-119642.jpg; File:Enargite-256381.jpg; File:Enargite-300782.jpg (Wikimedia Commons)Robert M. Lavinsky · Wikimedia Commons

Draft data from the Provenite workbook. Check entries against the cited sources before relying on them. Photos are open-licence images from Wikimedia Commons; the author and licence are given with each photo.