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Nigeria | |
| Journal of Minerals & Materials Characterization & Engineering, Vol. 8, No.5, pp 359-366, 2009 |
| Harwood and Lou Rector collections (www.harwood.seaes.machester.ac.uk) |
| OMADA, J.I., MARTINS, R.F. & ABAA, S.I. (2003): The Kigom peralkaline granite pluton of the Nigerian Younger Granite suite.- Global J. of Geol. Sci., Nigeria, Vol. 1, No. 1, pp 1-11. |
| Wolfgang Hampel, site visit November 2007 |
| Mineralogical Magazine 1962 33 : 48-51 |
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| Mineralogical Magazine 1962 33 : 48-51 |
| Von Knorring, O., Dyson, P. (1959) An occurrence of genthelvite in The Younger Granite Province of Northern Nigeria. American Mineralogist: 44(11-12): 1294-1298. |
Jos Plateau, Plateau, Nigeria