Opal from selected localities.
USA | |
| [Opal-A var: Opal-AN] Jones, Robert W. (1960): Luminescent Minerals of Connecticut, A Guide to Their Properties and Locations. |
[Opal-A var: Opal-AN] Kevin Czaja Collection | |
| [Opal-A var: Opal-AN] Former Don Miller collection |
[Opal-A var: Opal-AN] Former Don Miller collection | |
[Opal-A var: Opal-AN] Kevin Czaja Collection | |
[Opal-A var: Opal-AN] Kevin Czaja Collection |
John Salak Quarry, Haddam, Middlesex County, Connecticut, USA