Pyrite from selected localities.
USA | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. | |
F. Brett Denny and Ronald C. Counts (2009) Bedrock Geology of Shetlerville Quadrangle. Illinois State Geological Survey Shetlerville-BG |