$700Median
116Sold (12 mo)
$150Last sale
Chalcocite
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A wonderful thumbnail specimen for the species from this famous locality. None lustrous prismatic crystals forming a cluster with little attached matrix. Examples in this quality from the species and locality rarely appear on the market today.The White Pine Mine in Ontonagon County, Michigan, is a major copper mining operation that was developed in the mid 20th century to exploit a large stratiform copper deposit in Precambrian sedimentary rocks of the Nonesuch Shale. Mining began in 1955 and was carried out through extensive underground workings that followed the copper bearing layers. The deposit was notable for its fine grained chalcocite mineralization, which made it different from the native copper deposits of the Keweenaw Peninsula. The mine operated for several decades before closing in 1995, and it remains an important part of the history of copper mining in the United States.
Product details
SpeciesChalcocite
SizeThumbnail
Dimensions2.5 x 1.5 x 0.5 cm
Added on03/29/2026
LocalityUSA, Michigan, White Pine Mine
Current owner
Unknown Owner
- Acquired
- Sep 2026
- Price paid
- $500.00
Previous owners
| Date | Collector | Acquisition price |
|---|---|---|
| — | Weinrich Minerals | Not disclosed |
Learn more
Mineral guide
Learn about Chalcocite
dark steel-gray crystals with bright metallic luster and dramatic twinning; rare, well-formed specimens attract collectors and highlight sites.Regional guide
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