Pyrrhotite from selected localities.
USA | |
| USGS Prof Paper 610 "Principal Gold Producing Districts of the United States" |
| Hanahan, Jack (1985) The Foote Quarry, Kings Mountain, North Carolina: Revisited, 1984. Rocks & Minerals, 60(2), 76-82.; Carolina Geological Society Field Trip Guidebook 1981, 39-48. |