Quartz from selected localities.
USA | |
| USGS Prof Paper 610 "Principal Gold Producing Districts of the United States" |
USGS Prof Paper 610 "Principal Gold Producing Districts of the United States" | |
USGS Prof Paper 610 "Principal Gold Producing Districts of the United States" | |
| Carpenter III, P. Albert (1976) Metallic Mineral Deposits of the Carolina Slate Belt, North Carolina : NCGS Bulletion 84 |
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. | |
| [var: Rock Crystal] Rocks & Min.:60:96. |