Opal from Buckskin Mountain, National Mining District, Humboldt County, Nevada, USA
USA | |
| Econ Geol (1985) 80:360-393 |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. |
USA | |
| Econ Geol (1985) 80:360-393 |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. |