Chalcopyrite
mineral · common
Quick facts
- Formula
- CuFeS2
- Hardness
- 3.5–4
- Luster
- Metallic
- Colors
- Brassy yellow, iridescent tarnish
Chalcopyrite is a copper iron sulfide mineral with a metallic luster and brassy yellow color. It's the most important copper ore and is found in many types of mineral deposits.
Identify by its brassy yellow color and greenish-black streak.
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