Provenite

Cerro de Pasco

AreaActiveDraft data

10.6864° S, 76.2625° W · ± 10 km

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

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Minerals found here

Enargite

Enargite at Cerro de Pasco

Piece of enargite ore with a pocket of sharp enargite crystals from Cerro de Pasco.
Piece of enargite ore with a pocket of sharp enargite crystals from Cerro de Pasco.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Second view of the Cerro de Pasco enargite ore specimen with crystals in a pocket.
Second view of the Cerro de Pasco enargite ore specimen with crystals in a pocket.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Formula
Cu₃AsS₄
Morphology
Sharp crystals in pockets in massive ore
Typical size
Specimen about 6 cm with small crystals
Color / luster
Black, metallic
Availability
Scarce
History
One photographed crystal habit was once mistaken for luzonite.

Sources: SRC-642 SRC-654

About Enargite →

Geology of the locality

Setting
Polymetallic district: silver-bearing hydrothermal veins and sulfide replacements of limestone near porphyry dacite stocks, attributed to late-stage caldera volcanism
Type
Hydrothermal
Host rock
Jurassic Pucara limestone (replaced)
Region
Pasco
Country
Peru

Coordinates are those of the city of Cerro de Pasco (Wikipedia), used as a district-level position. Mined since colonial times; silver discovered 1630.

Sources: SRC-648

Sources

  1. SRC-648 · Website
    Cerro de PascoWikipedia contributors · Wikipedia
  2. SRC-642 · Book
    Handbook of Mineralogy - EnargiteAnthony, J.W.; Bideaux, R.A.; Bladh, K.W.; Nichols, M.C. · 2005 · Mineral Data Publishing / Mineralogical Society of America
  3. SRC-654 · Website
    File:Enargite-199917.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.