Columbite-(Fe)-Columbite-(Mn) Series from selected localities.
USA | |
| Rocks & Minerals: 75(3): 156-169. |
| SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills" |
USA | |
| Rocks & Minerals: 75(3): 156-169. |
| SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills" |