Datolite from selected localities.
USA | |
| Mineralogy of Michigan (2004) Heinrich & Robinson |
Rosemeyer, T. 2011 New from the Keweenaw: Part 4 - Recent Mineral Finds in Michigan's Copper Country. Rocks & Minerals 86:205-227 | |
Mineralogy of Michigan (2004) Heinrich & Robinson | |
| Morris Jr., T. (1983) Michigan Mineralogy: A Locality Index. Rocks & Minerals: 58(3): 109. |
Yalmer Primeau Collection | |
| Rosemeyer, T. (2005) The Occurrence of Porcelaneous Datolite in Michigan's Lake Superior Copper District. Rocks & Minerals: 80(3): 154-177. |
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. | |
| Mineralogy of Michigan (2004) Heinrich & Robinson |
Red Gold and Tarnished Silver, 2001, CCRMC |
Calumet & Hecla Mine, Calumet, Calumet Township, Houghton County, Michigan, USA