“Covellite (latest Cretaceous to earliest Tertiary, 62-66 Ma; Leonard Mine, Butte, Montana, USA) 1” by James St. John. Licensed under CC By 2.0.
Opaque Blue Covellite Specimen from United States
Covellite, Butte, Montana. Photo by James St. John. Licensed under CC By 2.0.
Article: Covellite Value, Price, and Jewelry Information
Credit: James St. John
| Gemstone | Covellite |
| Natural or man made | Natural |
| Origin | United States |
| Origin details | Leonard Mine, Butte, Montana |
| Gem State | Specimen |
| Color | Blue |
| Transparency | Opaque |