$500Median
598Sold (12 mo)
$80Last sale
Copper
- Free shipping
- Seller offers an extended return window of up to 14 days
Ships from USA
A loose branching crystallized grouping of native copper with little attached matrix. In good condition all around.The Central Mine, located in the Keweenaw Peninsula of Michigan, was one of the most famous and productive copper mines of the Lake Superior copper district, operating from its opening in 1854 until its closure in 1898. Geologically, the mine worked the Central vein, a fissure vein intersecting the regional north-dipping basalt lava flows and interbedded conglomerates of the Portage Lake Volcanics, renowned for its rich masses of native copper. Historically, the site was developed by the Pittsburgh and Boston Mining Company and became famous not only for its consistent profitability and high-grade ore, but also for its tight-knit community of Cornish miners and the annual Central Mine Homecoming reunions that continue to be held at the historic church site to this day.
Product details
SpeciesCopper
SizeSmall Cabinet
Dimensions8.0 x 0.7 x 0.5 cm
Listed on08/25/2026
LocalityUSA, Michigan, Central Mine
SKU8821967
Current owner
WM
Weinrich MineralsFeatured
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
Comments