Shadlunite from North America Plate
USA | |
| McSwiggen, P. L. (1999) Platinum-palladium group minerals, gold, silver, and cobalt in the Minnamax copper-nickel sulfide deposit, Duluth Complex, northeastern Minnesota. Minnesota Geological Survey Report of Investigations 54 |
| Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology |