Chalcopyrite crystals can be found on many Kovdor carbonatite samples, sometimes in tiny
octahedrons. Zheleznyi quarry
[photo/collection: Maurice de Graaf]

Chalcopyrite occurs in grains in Barite in the less known Dhzalankol deposit, Caucasus. It is part of some alteration / replacement processes of several copper sulphides.
[photo/collection: Maurice de Graaf]

Massive Chalcopyrite from the ultrabasic intrusion from Nyud,  Monchegorsk, Kola
[Photo/collection: Maurice de Graaf]