Cleavelandite from Copper Mountain pegmatite District, Bridger Mts (Bridger Range), Fremont County, Wyoming, USA
USA | |
| Rocks & Minerals 76:386 |
| Hanley, J.B., Heinrich, E.W., Page, L.R. (1950) Pegmatite investigations in Colorado, Wyoming, and Utah, 1942-1944. Professional Paper 227. US Geological Survey doi:10.3133/pp227 |