7uu ((CHALCOPYRITE)), $10 MINIMUM BID, Mountain Consolidated Mine, Butte, Butte District, Silver Bow County, Montana, 7 x 6 x 4 cm, Cabinet, | |
Two specimens with brassy massive Chalcopyrite from the Mountain Con which has the deepest shaft on the butte Hill at 5380 feet with the headframe still standing. ex U of U geology dept specimen. |