mineral
Copper
Native Copper (Cu)
AI-generated identification · may be incorrectHardness of 2.5 to 3 on the Mohs scale, distinct copper-red color with a metallic luster, isometric crystal system, and a hackly fracture with no true cleavage.
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Physical properties
Hardness of 2.5 to 3 on the Mohs scale, distinct copper-red color with a metallic luster, isometric crystal system, and a hackly fracture with no true cleavage.
Formation & geological history
Forms in hydrothermal veins, as well as by the alteration of copper-bearing minerals in oxidized zones of ore deposits, often during the Precambrian to Cenozoic eras.
Uses & applications
Extensively used in electrical wiring, plumbing, electronics, and occasionally fashioned into decorative ornaments or jewelry by collectors.
Geological facts
Native copper is one of the few metallic elements that occurs in pure macroscopic form in nature and has been utilized by humans for over 10,000 years.
Field identification & locations
Easily identifiable in the field by its characteristic reddish-brown metallic color, high density, and malleability. Found worldwide, notably in Michigan, USA, and Chile.
