Pyrite from selected localities.
USA | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania |
| Rocks & Min.: 17:344. |
USA | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania |
| Rocks & Min.: 17:344. |