Realgar from Fremont County, Wyoming, USA
USA | |
| Rocks & Minerals (2001): 76: 387. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
USA | |
| Rocks & Minerals (2001): 76: 387. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |