Columbite-(Fe)-Columbite-(Mn) Series from selected localities.
USA | |
| Schooner, Richard. (1961), The Mineralogy of Connecticut. Fluorescent House, Branford, Connecticut.; Schooner, Richard. (circa 1990), Untitled manuscript on central Connecticut mineralogy. |
Ryerson (1972) | |
| Harold Moritz collection |
Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA