About Bornite
A copper iron sulfide mineral, known for its iridescent tarnish of purple, blue, and red, earning it the name 'Peacock Ore.' It's a stone of joy, happiness, and transformation, helping to integrate energies and embrace change.
Primary Hues
Copper-Red to Brownish-Bronze on fresh surface, tarnishes to iridescent purple, blue, red
Geological & Scientific Details
Bornite is classified as a sulfide mineral mineral which typically crystallizes in the orthorhombic system. Its chemical formula is Cu5FeS4. Common crystal habits include granular, massive, disseminated – crystals pseudocubic, dodecahedral, octahedral.
Key Geological Properties:
- Mineral Category: Sulfide mineral
- Chemical Formula: Cu5FeS4
- IMA Symbol: Bn[1]
- Crystal System: Orthorhombic
- Formula Mass (g/mol): 501.88 g/mol
- Predominant Geological Color: Copper red, bronze brown, purple
- Crystal Habit: Granular, massive, disseminated – Crystals pseudocubic, dodecahedral, octahedral
- Twinning: Penetration twins on [111]
- Cleavage: Poor on [111]
- Luster: Metallic if fresh, iridescent tarnish
- Streak: Grayish black
Associated Minerals
- Chalcopyrite
- Chalcocite
- Covellite
- Pyrite
- Digenite
- Quartz