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USA (FRL) | |
| Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp. |
| (in part): Rocks & Min.:56:248. |
| www. Rogers Minerals.com |
| www.sauktown sales.com |
| www.sauktown sales.com |
| Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp. |
| USGS PP144 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Yalmer Primeau collection |
| Personally collected by Paul Brandes in 2013 |
| Bornhorst, T.J., Rose, W.I. (1994) Self-guided geological field trip to the Keweenaw Peninsula, Michigan. Field Trip Guidebook. Institute on Lake Superior Geology Annual Meeting, Houghton, Michigan: 40(2). 185 pages. |
| Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp. |
| Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp. |
| Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp. |
| Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp. |
| www.sauktown sales.com |
| |
| Personal observation- Jim Daly |
| self collected at site, and verified through red metal minerals |
- Isle Royale National Park
| Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row. |
| Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp. |
| Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp. |
| Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp. |
Copper Falls Mine, Copper Falls, Eagle Harbor, Keweenaw County, Michigan, USA