Chalcedony from Tombstone Hills, Cochise County, Arizona, USA
USA | |
| Luetcke, Rolf (n.d.) Personal communication. |
Luetcke, Rolf (n.d.) Personal communication. | |
Luetcke, Rolf (n.d.) Personal communication. | |
Luetcke, Rolf (n.d.) Personal communication. | |
Luetcke, Rolf (n.d.) Personal communication. |
Gallagher Vanadium & Rare Minerals Corp Mine, Tombstone Mining District, Cochise County, Arizona, USA