Arsenopyrite from San Juan County, Utah, USA
USA | |
| USGS: Geological Survey Circular 217 |
| USGS: Geological Survey Circular 217 |
USGS: Geological Survey Circular 217 | |
| USGS: Geological Survey Circular 217 |
USGS: Geological Survey Circular 217 | |
USGS: Geological Survey Circular 217 USGS: Geological Survey Circular 217 | |
USGS: Geological Survey Circular 217 | |
USGS: Geological Survey Circular 217 | |
| USGS: Geological Survey Circular 217 |
| USGS: Geological Survey Circular 217 |
USGS: Geological Survey Circular 217 |