Prehnite from selected localities.
USA | |
| Rocks & Min.:58:109 & 64:150. |
Mineralogy of Michigan (2004) Heinrich & Robinson | |
| Rosemeyer, T. (2007) The Kearsarge: Copper-bearing Amygdaloidal Lode. Houghton and Keweenaw Counties, Michigan. Rocks & Minerals: 82(4): 276-297. |
USGS PP144 | |
| Yalmer Primeau Collection |
| Morris Jr., T. (1983) Michigan Mineralogy: A Locality Index. Rocks & Minerals: 58(3): 109. |
Yalmer Primeau Collection | |
| Rocks & Min.: 13:137. |
Rosemeyer, T. (2007) The Kearsarge: Copper-bearing Amygdaloidal Lode. Houghton and Keweenaw Counties, Michigan. Rocks & Minerals: 82(4): 276-297. | |
| Mineralogy of Michigan (2004) Heinrich & Robinson |
Osceola Mine, Osceola, Calumet Township, Houghton County, Michigan, USA