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Chalcopyrite
Main Deposits
Chile, Peru, Mexico, Spain (Rio Tinto), United States, Canada and China.
Description and Characteristics
Chalcopyrite is a copper-iron sulphide found mainly in high- and medium-temperature hydrothermal veins, metamorphic contact deposits and igneous rocks. It belongs to the tetragonal crystal system and is the world’s primary copper ore. It is distinguished by its intense brass-yellow colour which, when exposed to air, oxidises easily, creating a patina of iridescent colours (blues, purples and greens), giving it its trade name of ‘peacock’.
| Chemical Formula | $$CuFeS₂$$ |
|---|---|
| Luster | Metal |
| Streak | Blackish green |
| Fracture | Irregular a concolora |
| Cleavage | Poor / Imperfect |
| Hardness | 3,5-4 Mohs |
| Crystal System | Tetragonal |
Did you know...?
The name derives from the Greek words ‘khalcos’ (copper) and ‘pyros’ (fire).
It differs from pyrite in that chalcopyrite is yellower and much softer (you can scratch it with a steel knife, whereas pyrite cannot). The variety sold as ‘Peacock Stone’ is usually chalcopyrite that has been treated with acids to enhance its natural iridescence.
It differs from pyrite in that chalcopyrite is yellower and much softer (you can scratch it with a steel knife, whereas pyrite cannot). The variety sold as ‘Peacock Stone’ is usually chalcopyrite that has been treated with acids to enhance its natural iridescence.
New-Age Properties
It is a very powerful energy-conducting stone that helps temper the soul and assimilate knowledge. On a spiritual level, it helps you reach the ideal state needed for deep meditation. On a mental level, it helps sharpen perception and logical thinking while listening to your inner voice. On a physical level, it is effective in enhancing the effects of acupuncture and is very useful in the practice of Tai Chi. Create energy grids with it at home or simply hold it in your hands.