Ulvöspinel from West Africa
Burkina Faso | |
| Neybergh, H., Laduron, D., Martin, H., Verkaeren, J. (1980) The vanadiferous magnetite deposits of the Oursi region, Upper-Volta. Economic Geology, 75 (7) 1042-1052 doi:10.2113/gsecongeo.75.7.1042 |
Mauritania | |
| (n.d.) Meteoritical Bulletin Database, The Meteoritical Society. |