Chalcedony from Erongo Region, Namibia
Namibia | |
| Cairncross, Bruce (2004) Field Guide to Rocks & Minerals of Southern Africa. 288pp. |
| Cairncross, B. & Bahmann, U. (2007): Zepterquarz und Prehnit vom Tafelkop, Goboboseb-Berge, Namibia. Lapis 32 (6), 37-43. (in German) |
| Cairncross, Bruce (2004) Field Guide to Rocks & Minerals of Southern Africa. 288pp. |
Erongo Mountains, Karibib Constituency, Erongo Region, Namibia