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Namibia | |
| Nörtemann, M. F. J., Mücke, A., Weber, K., & Meinert, L. D. (2000). Mineralogy of the Navachab skarn deposit, Namibia: an unusual Au-bearing skarn in high-grade metamorphic rocks. Communications of the Geological Survey of Namibia, 12, 149-156. |
- Okatjimukuju Farm 55 (Friedrichsfelde Farm)
| P. Keller and O. von Knorring, Eur. J. Mineral. , 1989, 1, pp. 567-593. |
| Cairncross, Bruce, Bahmann, Uli (2006) Famous mineral localities: the Erongo Mountains, Namibia. The Mineralogical Record, 37 (5) 361-470 |
| Keller, P. (1991) The occurrence of Li-Fe-Mn phosphate minerals in granitic pegmatites of Namibia. Communications of the Geological Survey of Namibia, 7. 21-25 |