Pyrite from selected localities.
USA | |
| Robert E.Walstrom Collection; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| Robert E. Walstrom Collection |
| Robert E.Walstrom Collection |
| USGS Prof Paper 68 The Ore Deposits of New Mexico , Calcite, Pyrite, Quartz, Argentite, Bornite, Cerargyrite, Chalcocite, Chalcopyrite, Galena, Sphalerite, Rhyolite, |