| In a similar reaction, it can also help to retrieve copper from chalcopyrite and covellite. |
|
| Outstanding in the display is a dark blue covellite group as well as plates of quartz. |
|
| Generally associated minerals included other silver amalgams, covellite, and pyrite. |
|
| Good crystals of covellite have not been reported from the District. |
|
| The mineralogy of the Copper lodes consists of chalcopyrite, pyrite, chalcocite, covellite and marcasite. |
|
| Other minerals present in the upper zone include bornite, covellite, chalcocite, prousite, hematite, kaolin, and illite-smectite. |
|
| Examination of thin sections confirms the presence of widespread pentlandite together with millerite and lesser covellite. |
|
| Direct and indirect mechanisms in the bacterial leaching of covellite. |
|
| Covellite and chalcocite have been reported from the Property, generally interpreted to be associated with the base of the oxidation zone. |
|
