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The different forms of copper. A) Native copper; B) Azurite; C) Cuprite; D) Chalcopyrite; E) Chalcocite; and F) Malachite. Photo Credit: Arizona Geological Survey.
The different forms of copper. A) Native copper; B) Azurite; C) Cuprite; D) Chalcopyrite; E) Chalcocite; and F) Malachite. Photo Credit: Arizona Geological Survey.