Agate from Pedregosa Basin, North America Plate
USA | |
| Rolf Luetcke |
| Luetcke, Rolf (n.d.) Personal communication. |
P Cristofono collection, 2007 | |
P Cristofono collection, 2007 | |
| King, Van (n.d.) Personal communcation. |
USA | |
| Rolf Luetcke |
| Luetcke, Rolf (n.d.) Personal communication. |
P Cristofono collection, 2007 | |
P Cristofono collection, 2007 | |
| King, Van (n.d.) Personal communcation. |
Ligier Marble Quarries, Dragoon District, Cochise County, Arizona, USA