Pyrrhotite from selected localities.
USA | |
| R&M 75:3 pp 156-169 |
Smith, A.E., Fritzsch, E. (2000) South Dakota. Rocks & Minerals: 75(3): 156-169. | |
SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills" | |
U.S. Geological Survey Professional Paper 297 |