Quartz from selected localities.
USA | |
| Lesure, Frank G.,(1968) Mica Deposits of the Blue Ridge in North Carolina:USGS Professional Paper 577 |
| Lesure, Frank G.,(1968) Mica Deposits of the Blue Ridge in North Carolina :USGS Professional Paper 577 |
| [var: Chalcedony] U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
[var: Chalcedony] 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.; SCHALLER, W. T., 1933, A LARGE MONAZITE CRYSTAL FROM NORTH CAROLINA: AM. MINERALOGIST, V. 18, 435-439. |