Furutobeite from Rocky Mountains, North America
USA | |
| Gammons, C. H., Szarkowski, J., & Stevenson, R. (2016) New investigations of the mineralogy of silver in the world-class porphyry-lode deposits of Butte, MT. Mining engineering Magazine website |
| Species confirmed by Dr. Ben Schumer of Hazen Research, Golden, Colorado using SEM/BSE analysis. |
Alice Mine, Walkerville, Butte Mining District, Silver Bow County, Montana, USA