Opal-AN from Maricopa 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. |
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. |
Queen of Sheba Mine, Maricopa County, Arizona, USA