Arfvedsonite from Piedmontia Domain, North America Plate
USA | |
| Mines of the Washington D.C Area |
| Genth, Frederick Augustus.,1891,The Minerals Of North Carolina:USGS Bulletion No.74 |
USA | |
| Mines of the Washington D.C Area |
| Genth, Frederick Augustus.,1891,The Minerals Of North Carolina:USGS Bulletion No.74 |