Quartz from selected localities.
USA | |
| J.Wright Horton,Jr.,and Victor A.Zullo,1991,The Geology of the Carolinas, pg#335; Econ Geol (1980) 75:515-522 |
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. |