Hematite from selected localities.
USA | |
| Rosemeyer, T. (2005) The Occurrence of Porcelaneous Datolite in Michigan's Lake Superior Copper District. Rocks & Minerals: 80(3): 154-177. |
| Morris Jr., T. (1983) Michigan Mineralogy: A Locality Index. Rocks & Minerals: 58(3): 109. |
Mineralogy of Michigan (2004) Heinrich & Robinson | |
Mineralogy of Michigan (2004) Heinrich & Robinson | |
Mineralogy of Michigan (2004) Heinrich & Robinson |
Isle Royal Mines, Portage Township, Houghton County, Michigan, USA