Provenite

Kelley Mine

MineClosedDraft data

46.0203° N, 112.5264° W · ± 1 km

Enargite from Montana, United States, with photos of specimens from this locality.

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Minerals found here

Enargite

On the same specimen

Same specimen Pyrite with Enargite

1 specimen photo(s) from this locality show enargite with pyrite together. The pairing comes from the photographer's file name and label, so the relationship between the two minerals is not specified.

Enargite at Kelley Mine

Lustrous silvery-gray enargite crystals with pyrite from the Kelley Mine, Butte.
Lustrous silvery-gray enargite crystals with pyrite from the Kelley Mine, Butte.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Formula
Cu₃AsS₄
Morphology
Sharp prismatic crystals with pyrite
Typical size
Crystals to about 1.2 cm
Color / luster
Silvery gray, highly lustrous
Associated minerals
Pyritechalcocitechalcopyritebornite
Availability
Scarce

Sources: SRC-645 SRC-661

About Enargite →

Geology of the locality

Setting
Main-stage copper veins of the Butte district; worked by block caving from 1952 to 1962
Type
Hydrothermal
Host rock
Butte Granite (Boulder Batholith)
Region
Montana
Country
United States

Past producer of copper with gold and silver. Coordinates from the USGS MRDS record shown by Western Mining History; MRDS states its locations are not verified, hence +/- 1 km.

Sources: SRC-645

Sources

  1. SRC-645 · Database
    Kelley MineUSGS Mineral Resources Data System (via Western Mining History) · Western Mining History
  2. SRC-661 · Website
    File:Enargite-Pyrite-119765.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.