Smoky Quartz from selected localities.
USA | |
| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 314. |
| www.mineralsocal.org; Griffis, R.A. (1987), Kern knob pluton and other highly-evolved granitoids in East-central California, M.Sc. Thesis, California State University, Northridge. |
| Russ Rizzo Collection |
Crystal Ridge, Johnson Spring, Tibbetts Mining District, Inyo Mts, Inyo County, California, USA