mineral
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
AI-generated identification · may be incorrectHardness is 3.5 to 4 on the Mohs scale. Color ranges from brassy yellow to golden, often with iridescent tarnish.
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Physical properties
Hardness is 3.5 to 4 on the Mohs scale. Color ranges from brassy yellow to golden, often with iridescent tarnish.
Formation & geological history
Forms in hydrothermal veins and igneous intrusions globally, often associated with copper ore deposits.
Uses & applications
Primary ore of copper and widely collected as a mineral specimen due to its metallic luster and colorful tarnish.
Geological facts
Commonly known as peacock ore due to its vibrant purple, blue, and green iridescent tarnish caused by oxidation.
Field identification & locations
Identified by its brassy yellow color, dark streak, and lower hardness compared to pyrite. Found worldwide in copper-bearing rock formations.
