$500Median
598Sold (12 mo)
$80Last sale
Updated 2d ago
Copper with Calcite
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Ships from USA
Sharp large crystals of native copper to 1.5 cm in size forming a cluster with little attached matrix and minor crystallized calcite. In super condition.The Quincy Mine, located near Hancock in Houghton County, Michigan, was founded in 1846 and operated primarily from 1846 to 1945, with brief periods of reopening during World War II and minor activities later. Geologically, the mine is situated within the Keweenaw Peninsula s Keweenawan rift zone, extracting native copper from Precambrian-aged basaltic lava flows and amygdaloid strata (most notably the Pewabic lode), as well as early fissure veins.
Product details
SizeMiniature
Dimensions4.0 x 2.5 x 2.0 cm
Listed on09/15/2026
LocalityUSA, Michigan, Quincy Mine
SKU1791316
Current owner
WM
Weinrich MineralsFeatured
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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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