Smoky Quartz from selected localities.
USA | |
| Wallace R.Griffitts and Jerry C.Olson (1953) Mica Deposits Of The Southeastern Piedmont:USGS Paper 248-D |
| USGS Bull 1042G |
USA | |
| Wallace R.Griffitts and Jerry C.Olson (1953) Mica Deposits Of The Southeastern Piedmont:USGS Paper 248-D |
| USGS Bull 1042G |