Quartz from selected localities.
USA | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| Minerals of Colorado (1997) Eckel, E. B.; Am Min 35:173-184; USGS Prof. Paper 227 |
USGS Prof. Paper 227 | |
USGS Prof. Paper 227 | |
USGS Prof. Paper 227 | |
USGS Prof. Paper 227 | |
USGS Prof. Paper 227 | |
USGS Prof. Paper 227 | |
American Mineralogist,Vol.38 p139; USGS Prof. Paper 227 | |
| 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.; 2008 New Mexico Mineral Symposium abstracts; U.S. Geological Survey Professional Paper 223 Spry, P. G., McFadden, S., Teale, G. S., Alers, B., Shallow, J. M., & Glenn, J. M. (2021). Nodular sillimanite rocks as field indicators to metamorphosed massive sulfide deposits. Ore Geology Reviews, 104632. | |
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; American Mineralogist,Vol.38 p139 | |
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. | |
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: Chalcedony] Minerals of Colorado (1997) E.B. Eckel | |
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. | |
| Minerals of Colorado (1997) Eckel, E. B.; USGS Prof. Paper 227 |
USGS Prof. Paper 227 |