Where is Chalcopyrite found?
CuFeS2
Got a photo? Identify rocks instantly with the Rockby app
Open the appChalcopyrite occurs in specific geological environments. Knowing where to look, and in what kind of rock, is the difference between going home empty-handed and finding a great specimen.
Where to find Chalcopyrite
Chuquicamata, Chile
One of the largest open-pit copper mines in the world, renowned for its massive chalcopyrite deposits within a porphyry copper system.
Bingham Canyon Mine, Utah, USA
Another massive porphyry copper deposit, a significant source of chalcopyrite.
Sudbury Basin, Ontario, Canada
Famous for its magmatic nickel-copper sulfide deposits, where chalcopyrite is a major ore mineral.
Kidd Creek Mine, Ontario, Canada
A world-class VMS deposit with significant chalcopyrite mineralization.
Mount Isa, Queensland, Australia
Known for its large lead-zinc-silver and copper deposits, including substantial chalcopyrite.
Collecting tips
- Look for Brassy Yellow Color. Chalcopyrite's distinctive brassy yellow color is a primary identifier. Be aware of iridescent tarnish, which can make it appear more colorful.
- Check the Streak. A greenish-black streak is a key diagnostic feature that distinguishes it from pyrite (black streak) and gold (yellow streak).
- Test Hardness. With a Mohs hardness of 3.5-4, chalcopyrite is softer than pyrite (6-6.5) and can be scratched by a steel knife.
- Observe Associated Minerals. Chalcopyrite often occurs with other sulfide minerals (pyrite, sphalerite, galena) and quartz, which can help in identification and indicate a mineralized zone.
- Consider Geological Context. Understanding the geological environment (e.g., hydrothermal veins, porphyry deposits) can narrow down possibilities and increase the likelihood of finding chalcopyrite.
Quick Check
- Color:
- Brassy yellow, often tarnished iridescent
- Luster:
- Metallic
- Streak:
- Greenish-black
Explore Chalcopyrite
Identify rocks anywhere
Free on iOS, Android, and Web. Photo identification, full database, and your personal collection.