Chalcedony from selected localities.
USA | |
| |
| UGMS Bull 117 Minerals and Mineral Localities of Utah |
R. Barney and John Sobolewski collections | |
| Rick Dalrymple Collection |
[var: Carnelian] UGMS Bull 117 Minerals and Mineral Localities of Utah | |
J. Holfert, W. Mroch, J. Fuller (1996) A Field Guide to Topaz and Associated Minerals of the Thomas Range, Utah (Topaz Mountain) Vol I HM Publishing 103pp | |
[var: Agate] U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
Brush Wellman Mine, Spor Mountain Mining District, Thomas Range, Juab County, Utah, USA