You are purchasing the exact item described and pictured. As a natural product, irregularities in form and condition may occur, which should not be considered as defects. Therefore, we strongly recommend carefully reviewing the provided images!
Name:
Chalcopyrite with temper colors
Common name:
Chalkopyrit → yellow copper
Crystal system:
Chalcopyrite → tetragonal
Chemical composition:
Chalcopyrite → Iron, Copper, Sulfur
Location:
Size of the mineral:
Length: 5,3 cm
Width: 4,7 cm
Height: 3,5 cm
Weight:
Cooking in detergent suds gives these otherwise golden yellow pieces of chalcopyrite their fantastic iridescent patina. In nature, the freshly mined ore pieces would only get this oxidized surface from atmospheric oxygen and moisture after many years. As a rule, these pieces are falsely marketed as bornite (colored copper pyrite).
