Copper from selected localities.
USA | |
| Rocks & Min.:58:109 & 64:150. |
| Rosemeyer, T. 2011 New from the Keweenaw: Part 4 - Recent Mineral Finds in Michigan's Copper Country. Rocks & Minerals 86:205-227 | |
| Morris Jr., T. (1983) Michigan Mineralogy: A Locality Index. Rocks & Minerals: 58(3): 109. | |
| Rosemeyer, T. (2001) The Copper-Bearing Conglomerate Lodes of the Michigan Copper Country. Rocks & Minerals: 76(3): 156-188. | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; USGS PP144 |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. | |
| Morris Jr., T. (1983) Michigan Mineralogy: A Locality Index. Rocks & Minerals: 58(3): 109. |
| Kerry Day | |
| Red Gold and Tarnished Silver (2001), by CCRMC. Rosemeyer, T. (2022). News from the Keweenaw: Part 5—Recent Mineral Finds in Michigan’s Copper Country: Twenty-ninth in a series of articles on the mines and minerals of Michigan’s Copper Country. Rocks & Minerals, 97(4), 354-363. | |
| Yalmer Primeau Collection | |
| Morris Jr., T. (1983) Michigan Mineralogy: A Locality Index. Rocks & Minerals: 58(3): 109. |
| Morris Jr., T. (1983) Michigan Mineralogy: A Locality Index. Rocks & Minerals: 58(3): 109. | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. | |
| USGS PP144 | |
| Morris Jr., T. (1983) Michigan Mineralogy: A Locality Index. Rocks & Minerals: 58(3): 109. |
Calumet & Hecla Mine, Calumet, Calumet Township, Houghton County, Michigan, USA