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- Native_copper abstract "Native copper is an uncombined form of copper which occurs as a natural mineral. Copper is one of the few metallic elements to occur in native form, although it most commonly occurs in oxidized states and mixed with other elements. Native copper was an important ore of copper in historic times and was used by pre-historic peoples.Native copper occurs as rarely isometric cubic and octahedral crystals, but more typically as irregular masses and fracture fillings. It has a reddish, orangish, and/or brownish color on fresh surfaces, but typically is weathered and coated with a green tarnish of copper(II) carbonate (also known as patina or verdigris). Its specific gravity is 8.9 and its hardness is 2.5–3.The mines of the Keweenaw native copper deposits of Upper Michigan were major copper producers in the 19th and early 20th centuries, and are the largest deposits of native copper in the world. Native Americans mined copper on a small scale at this and several other locations, and evidence exists of copper trading routes throughout North America among native peoples, proven by isotopic analysis. The first commercial mines in the Keweenaw Peninsula (which is nicknamed the "Copper Country" and "Copper Island"), opened in the 1840s. Isle Royale in western Lake Superior was also a site of many tons of native copper. Some of it was extracted by native peoples, but only one of several commercial attempts at mining turned a profit there.Another major native copper deposit is in Coro Coro, Bolivia.The name copper comes from the Greek kyprios, of Cyprus, the location of copper mines since pre-historic times.".
- Native_copper thumbnail Copper-21991.jpg?width=300.
- Native_copper wikiPageExternalLink native_nativecopper.html.
- Native_copper wikiPageID "2119766".
- Native_copper wikiPageRevisionID "599152190".
- Native_copper caption "Native copper from Ray mine, Arizona".
- Native_copper category Native_metal.
- Native_copper cleavage "None".
- Native_copper color "Pale rose on fresh surface, quickly darkens to copper-red; in reflected light, pale rose".
- Native_copper dana "1.1".
- Native_copper diaphaneity "Opaque".
- Native_copper formula "Cu".
- Native_copper fracture "Hackly - jagged".
- Native_copper gravity "8.95".
- Native_copper habit "As cubes, dodecahedra, and as tetrahexahedra; rarely as octahedra and complex combinations. Commonly flattened on {111}, elongated along [001]. Also as irregular distortions, in twisted, wirelike shapes; filiform, arborescent, massive".
- Native_copper hasPhotoCollection Native_copper.
- Native_copper luster "Metallic".
- Native_copper mohs "2".
- Native_copper name "Copper".
- Native_copper other "Tarnishes to black or green in air.".
- Native_copper solubility "Soluble in nitric acid".
- Native_copper streak "Copper-red".
- Native_copper strunz "1".
- Native_copper symmetry "Isometric 4/m 2/m".
- Native_copper system "cubic Hexoctahedral".
- Native_copper tenacity "Highly malleable and ductile".
- Native_copper twinning "On {111} to produce simple contact and penetration twins and cyclic groups".
- Native_copper unitCell "a = 3.615 Å = 4".
- Native_copper subject Category:Copper.
- Native_copper subject Category:Native_element_minerals.
- Native_copper type Abstraction100002137.
- Native_copper type Material114580897.
- Native_copper type Matter100020827.
- Native_copper type Mineral114662574.
- Native_copper type NativeElementMinerals.
- Native_copper type Part113809207.
- Native_copper type PhysicalEntity100001930.
- Native_copper type Relation100031921.
- Native_copper type Substance100019613.
- Native_copper type ChemicalSubstance.
- Native_copper type Mineral.
- Native_copper type ChemicalObject.
- Native_copper type Thing.
- Native_copper comment "Native copper is an uncombined form of copper which occurs as a natural mineral. Copper is one of the few metallic elements to occur in native form, although it most commonly occurs in oxidized states and mixed with other elements. Native copper was an important ore of copper in historic times and was used by pre-historic peoples.Native copper occurs as rarely isometric cubic and octahedral crystals, but more typically as irregular masses and fracture fillings.".
- Native_copper label "Miedź rodzima".
- Native_copper label "Native copper".
- Native_copper label "Rame nativo".
- Native_copper label "Медь самородная".
- Native_copper label "自然銅".
- Native_copper sameAs Měď_(minerál).
- Native_copper sameAs Rame_nativo.
- Native_copper sameAs 自然銅.
- Native_copper sameAs Miedź_rodzima.
- Native_copper sameAs m.06nhx2.
- Native_copper sameAs Q583353.
- Native_copper sameAs Q583353.
- Native_copper sameAs Native_copper.
- Native_copper wasDerivedFrom Native_copper?oldid=599152190.
- Native_copper depiction Copper-21991.jpg.
- Native_copper isPrimaryTopicOf Native_copper.
- Native_copper name "Copper".