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USA | |
| Frank Karasti |
| Good, D., Borysenko, J., McBride, J., Walford, P., Smyk, M., Hollings, P., ... & Corkery, J. (2010) Cu-Ni-PGE Deposits in Mafic Intrusions of the Lake Superior Region June 24-30, 2010. 11th International Platinum Symposium |
| Machamer, J. F. (1964). Geology and Origin of the Iron Ore Deposits of the Zenith Mine, Ely, Minnesota. PhD Thesis The Pennsylvania State University. |
| Raič, S., Mogessie, A., Benkó, Z., Molnár, F., Hauck, S., & Severson, M. (2015). Arsenic-rich Cu-Ni-PGE mineralization in Wetlegs, Duluth complex, St. Louis county, Minnesota, USA. The Canadian Mineralogist, 53:105-132 |
Raspberry prospect, Burntside, St. Louis County, Minnesota, USA