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Namibia | |
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| Henglein, M. 1921. Dioptas und plancheitlagerstatten aus der Umgebung von Guchab im Otavigebirge Deutsch-Sudwestafrikas. Z. prakt. Geol. 29:53–56. |
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| Bezing, L. von, Bode, R. & Jahn, S. (2007): Namibia. Mineralien und Fundstellen. Edition Schloss Freudenstein, Bode Verlag, Haltern. (in German) |
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| Cairncross, B. (1997) The Otavi Mountain Land Cu-Pb-Zn-V Deposits, Namibia. The Mineralogical Record: 28: 109-130 (124). |
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| Cook, Robert B. (2002) Connoisseur's Choice: Dioptase, Tsumeb, Namibia. Rocks & Minerals, 77 (3) 176-180 doi:10.1080/00357529.2002.9926680
Cairncross, B. (1997) The Otavi Mountain Land Cu-Pb-Zn-V Deposits, Namibia. Mineralogical Record 28(2) 109-130 |
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| Dunn, Pete J. (1991) Rare Minerals of the Kombat Mine. The Mineralogical Record, 22 (6) 421-425 |
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| Markham, N.L. (1959) Occurrence of jordanite in the Otavi Mountains, South West Africa. American Mineralogist: 44(5-6): 682-685. |
Otavi Constituency, Otjozondjupa Region, Namibia