NATIVE Copper - image 1
NATIVE Copper - image 2
specimen video

NATIVE Copper

$2,500.00

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Crystal Classics
Crystal ClassicsFeatured
Tucson, Arizona, USA
7,543 for sale·132 sold
This beautiful cabinet specimen of Native Copper is from the copper mining area of the Keweenaw Peninsula in Upper Michigan, USA, the region often referred to as Copper Country. The Native Copper forms a branching aggregate of elongated, rounded crystals measuring to 2.5 cm, of a magnificent copper-red tinted chocolate brown. The patina on such specimens is a characteristic of the Keweenaw Peninsula, making them instantly recognisable in any display. The specific mine from where this specimen originates is not recorded, but this is a common trait for any mining region in which so many mines existed. Apart from greatly enhancing any Copper Country or North American collection, this specimen would be an excellent example to use in a display of native elements.

Product details

Species
CopperAbout Copper →
SizeSmall Cabinet
Dimensions8.5 x 10.0 x 4.3 cm
Listed on10/24/2024
Locality
USA, Michigan, Keweenaw PeninsulaRegional guide →
SKUCC4035

Learn more

Copper
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.
Copper
Regional guide
Copper from Keweenaw Peninsula, Michigan, USA
The Keweenaw Peninsula is the classic native-copper locality: a place where copper was not merely an ore mineral locked in sulfides, but the metal itself—dense, malleable, and often sculptural—precipitated as copper, Cu, in billion-year-old volcanic rocks. For collectors, “Keweenaw copper” is a category unto itself. It can appear as wiry arborescent sprays, thick hackly sheets, crystal groups with sharp metallic faces, rounded glacial float nuggets, massive vein copper, copper-filled amygdules in basalt, and copper in conglomerate where the metal laces between volcanic pebbles.