Columbite-(Fe)-Columbite-(Mn) Series from selected localities.
USA | |
| Harold Moritz collection (former Ronald Januzzi collection) |
| Harold Moritz collection |
Harold Moritz collection | |
Harold Moritz collection | |
Yedlin, Neal. (1967), The Micromounter. Rocks and Minerals: 42(11): 840-842. |
Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA