Pyrolusite from
USA | |
| Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp. |
Rocks & Min.: 58: 108. | |
Demark, R. S. (2000) "Mines and Minerals of Michigan's Iron Country", Rocks & Minerals | |
| Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp. |
Morris Jr., T. (1983) Michigan Mineralogy: A Locality Index. Rocks & Minerals: 58(3): 111. | |
| Yalmer Primeau collection |
Taylor Mine, Alberta, Baraga County, Michigan, USA