The area of the Azure occurrence is underlain by the Lower Cretaceous Gambier Group. A northwest trending fault to the east of the area marks the contact of the Gambier rocks with quartz diorite of the Jurassic to Tertiary Coast Plutonic Complex.

Disseminated chalcopyrite and pyrite, with secondary malachite and azurite and some bornite, are associated with quartz in a quartz sericite schist. Chalcopyrite also occurs locally in lenses of quartz up to 30 centimetres wide. Faulting parallels the schistosity. Over 4000 metres of drilling were performed on the property in the early 1960's.