Amphibole Supergroup from Animas Mining District, San Juan County, Colorado, USA
USA | |
| [var. Uralite] Emmons, S. F., Becker, G. F. (1885) Statistics and Technology of the Precious Metals. Bureau of the Census. |
USA | |
| [var. Uralite] Emmons, S. F., Becker, G. F. (1885) Statistics and Technology of the Precious Metals. Bureau of the Census. |