Quartz from selected localities.
USA | |
| USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10163274. |
| [var: Amethyst] USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10143264. |
| Albert Russ |
| [var: Amethyst] Dilles, Seth (2008), personal communication to Mindat.org. | |
| [var: Amethyst] Calzia, J. P. et al. 1987. Mineral Resources of the Kingston Range Wilderness Study Area, San Bernardino County, California. U.S. Geological Survey Bulletin 1709-D, 34 p., maps. Gilg, H.A., Liebtrau, S., Staebler, G.A., Wilson, T. (editors) (2012) Amethyst: Uncommon Vintage ExtraLapis English No.16, Lithographie |
Purple Heart Mine, Kingston Peak, Kingston Range District, Kingston Range, San Bernardino County, California, USA