Tremolite from Middle Pass Mining District, Cochise County, Arizona, USA
USA | |
| Luetcke, Rolf (n.d.) Personal communication. |
Gilluly, J. (1956), USGS PP 281: 80-81. |
USA | |
| Luetcke, Rolf (n.d.) Personal communication. |
Gilluly, J. (1956), USGS PP 281: 80-81. |
Standard Tungsten Mine, Black Diamond Peak, Middle Pass Mining District, Cochise County, Arizona, USA