Knowra Native copper Native copper Native copper is a naturally occurring mineral composed predominantly of elemental copper. It occurs in forms including masses, crystals, and branching structures.
Copper : Copper is a chemical element with symbol Cu and atomic number 29, known for its conductivity and malleability. Native copper consists chiefly of this element in its uncombined metallic state.
Hydrothermal circulation : Hydrothermal circulation is the movement of heated, mineral-bearing water through rocks and fractures. Hot fluids can transport copper and deposit it as native metal when conditions change.
Keweenaw Peninsula : The Keweenaw Peninsula is a region of Michigan’s Upper Peninsula known for extensive native copper deposits. Its Precambrian volcanic rocks contain some of the world’s largest concentrations of native copper.
Old Copper Complex : The Old Copper Complex is an archaeological tradition of copper-working societies around the Great Lakes, dating back thousands of years. Great Lakes native copper was hammered into tools and ornaments by early regional communities.
Chalcopyrite : Chalcopyrite is a copper iron sulfide mineral and one of the most important copper ores. It is a compound ore, whereas native copper consists mostly of metallic copper.
Native element mineral : A native element mineral is a mineral composed predominantly of a single chemical element. This mineral class places native copper among naturally occurring elemental substances.
Copper redox chemistry : Copper redox chemistry concerns electron-transfer reactions between copper in different oxidation states. Reduction of dissolved copper ions can produce elemental copper in mineral deposits.
Lake Superior copper district : The Lake Superior copper district is a mining region surrounding Lake Superior, especially noted for native copper. This district is the classic setting for large masses and branching forms of the mineral.
Copper metallurgy : Copper metallurgy is the extraction, working, and alloying of copper for tools, objects, and structures. Native copper can be shaped directly, linking mineral specimens to early metalworking.
Cuprite : Cuprite is a copper oxide mineral with chemical formula Cu₂O. Cuprite contains oxidized copper in a compound rather than elemental copper.
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