$375Median
426Sold (12 mo)
$850Last sale
Copper from Keweenaw County, Michigan, USA
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Copper specimens showing well-formed, sizable crystals are fairly uncommon. This specimen exhibits these features with a distinct patina and stunning metallic luster intensifying its visual appeal. The Cliff Mine, the first successful copper mine in Copper Country, Michigan, opened in 1845 and closed its operations in the early 1900s. This piece has a significant amount of historical impact aside from its noteworthy characteristics as a fine mineral specimen.
Product details
SpeciesCopper
SizeMiniature
Dimensions3.6 x 4.0 cm
Weight62.6 grams
Added on12/28/2024
LocalityUSA, Michigan, Keweenaw County
Current owner
Unknown Owner
- Acquired
- Mar 2025
- Price paid
- $12,500.00
Previous owners
| Date | Collector | Acquisition price |
|---|---|---|
| — | One-Off Minerals | Not disclosed |
Learn more
Mineral guide
Learn about Copper
native copper with spinel-twinned crystals and arborescences; notable from Lake Superior, Itauz, Dongchuan, Corocoro, prized for color and localities.Regional guide
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