Chalcedony from selected localities.
USA | |
| [var: Myrickite] The Mineralogist 5(6):18. |
NBMG Bull 77 Geology and Mineral Resources of Southern Nye County, Nevada | |
USGS Bull 620D | |
USGS Bull 620D | |
NBMG Bull 77 Geology and Mineral Resources of Southern Nye County, Nevada | |