Arsenopyrite from Minnesota, USA
USA | |
| Am Min 50:148-169 |
| Institute on Lake Superior Geology Proceedings, 40th Annual Meeting, Houghton, MI, v. 40, part 4, |
| Frey, B., & Hanson, A. (2008) Drill Core Evaluation of Vermilion Greenstone Belt Gold Mineralization, Northeastern Minnesota. DNR Open-File Project 373: 2008-2010 |
Frey, B., & Hanson, A. (2008) Drill Core Evaluation of Vermilion Greenstone Belt Gold Mineralization, Northeastern Minnesota. DNR Open-File Project 373: 2008-2010 | |
| Frank Karasti |
Gruner prospect, Virginia, St. Louis County, Minnesota, USA