Calcite from Ahmeek Mine, Ahmeek, Allouez Township, Keweenaw County, Michigan, USA
USA | |
| Morris Jr., T. (1983) Michigan Mineralogy: A Locality Index. Rocks & Minerals: 58(3): 111. |
USGS PP144 | |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. |