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Gabon | |
- Léboumbi-Leyou Department
| Janusz Janeczek (1999) Mineralogy and geochemistry of natural fission reactors in Gabon. Reviews in Mineralogy and Geochemistry, MSA, v. 38, p. 321-392 |
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Namibia | |
| Cairncross, Bruce (2005) Famous mineral localities: Klein Spitzkoppe, Namibia. The Mineralogical Record, 36 (4) 317-335 Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 839 |
| Medenbach, O. (2001): Paul Ramdohr und die Stiepelmannsche Beryll-Fundstelle. – In: Namibia, Zauberwelt edler Steine und Kristalle, Haltern (Bode Verlag), 222pp., (p. 56-71) |
Stiepelmann Mine, Klein Spitzkopje granite stock, Spitzkopje Area, Dâures Constituency, Erongo Region, Namibia