At the Copper Belt showing, chalcopyrite and minor native copper occur in a fracture zone along a fault plane within Helikian Kitchener Formation (Purcell Supergroup) limestones and argillites. Mineralization is most pronounced within 1.5 metres of a hanging wall fault plane identified by a prominent fault gouge zone. The footwall argillites are seamed with quartz stringers which contain occasional specks of chalcopyrite and thin films of native copper.