Provenite

Chinkuashih Mine (Jinguashi)

MineClosedDraft data

25.1170° N, 121.8500° E · ± 1 km

Enargite from New Taipei City, Taiwan, with photos of specimens from this locality.

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Minerals found here

Enargite

On the same specimen

Same specimen Pyrite with Enargite

2 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 Chinkuashih Mine (Jinguashi)

Enargite blades capped or replaced by luzonite on beds of lustrous pyrite are typical for this mine.

Black striated enargite blades tipped with luzonite around lustrous pyrite, Pen-Shan ore body, Chinkuashih Mine.
Black striated enargite blades tipped with luzonite around lustrous pyrite, Pen-Shan ore body, Chinkuashih Mine.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Enargite blades altering to luzonite on a bed of pyrite, Pen-Shan ore body, Chinkuashih Mine.
Enargite blades altering to luzonite on a bed of pyrite, Pen-Shan ore body, Chinkuashih Mine.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Single complete enargite crystal with parallel growth from the Chinkuashih Mine, Taiwan.
Single complete enargite crystal with parallel growth from the Chinkuashih Mine, Taiwan.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Elongated enargite crystals on knobby luzonite aggregates from the Chinkuashih Mine.
Elongated enargite crystals on knobby luzonite aggregates from the Chinkuashih Mine.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Chunky crystals of luzonite replacing enargite from the Chinkuashih Mine.
Chunky crystals of luzonite replacing enargite from the Chinkuashih Mine.
Photo: Robert M. Lavinsky · CC BY-SA 3.0 · Source
Formula
Cu₃AsS₄
Morphology
Blades and elongated prisms, partly with parallel growth; often overgrown by or altered to luzonite
Typical size
Crystals mostly about 1 cm; specimens up to about 8 cm
Color / luster
Black with excellent metallic luster
Associated minerals
Luzonitepyrite
Surface features
Strongly striated faces
Availability
No longer available
History
Historic Japanese-era gold-copper mine, now depleted

Sources: SRC-642 SRC-649 SRC-656

About Enargite →

Geology of the locality

Setting
Gold-copper mine
Region
New Taipei City
Country
Taiwan

Coordinates are those of Jinguashi in Ruifang District (Wikipedia). The mines were run by Taiwan Kogyo during Japanese rule and are described as depleted. Specimen labels also name the Pen-Shan ore body of this mine.

Sources: SRC-649

Sources

  1. SRC-649 · Website
    JinguashiWikipedia 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-656 · Website
    File:Enargite-Luzonite-Pyrite-120825.jpg; File:Enargite-227628.jpg; File:Enargite-Luzonite-163254.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.