Quartz from selected localities.
USA | |
| [Chalcedony var: Agate] Mitchell, 2001: Gem Trails of Arizona, p.102 |
[Chalcedony var: Agate] Mitchell, 2001: Gem Trails of Arizona, p.104. |
USA | |
| [Chalcedony var: Agate] Mitchell, 2001: Gem Trails of Arizona, p.102 |
[Chalcedony var: Agate] Mitchell, 2001: Gem Trails of Arizona, p.104. |