Quartz from Seven Mile Canyon Mining District, Grand County, Utah, USA
USA | |
| Luetcke, Rolf (n.d.) Personal communication. |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. |
USA | |
| Luetcke, Rolf (n.d.) Personal communication. |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. |