Quartz from selected localities.
USA | |
| Junxing Zhao, Kezhang Qin, Guangming Li, and Jinxiang Li (2011): Geology and Exploration 47(1), 54-70; Dowsett, F. R., Jr., M. W. Ganster, D. E. Ranta, D. J. Baker, and H. J. Stein, (1981) Geology of the Mount Emmons molybdenum deposit, Crested Butte, Colorado. in 32nd Field Conference New Mexico Geological Society, pp. 325-332. |
| Minerals of Colorado (1997) E.B. Eckel |
Minerals of Colorado (1997) E.B. Eckel | |
Minerals of Colorado (1997) E.B. Eckel | |
Caine, J.S., Manning, A.H., Berger, B.R., Kremer, Y., Guzman, M.A., Eberl, D.D., and Schuller, K. (2010): USGS Open-File Report 10-1008 |
Standard Mine, Ruby Mining District, Gunnison County, Colorado, USA