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Goboboseb Mts, Brandberg Area, Erongo Region, Namibia

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Latitude & Longitude (WGS84): 21° 9' 5'' South , 14° 18' 20'' East
Latitude & Longitude (decimal): -21.1513888889, 14.3055555556
Age:132.14 ± 0.40 to 131.90 ± 0.58 Ma
Geologic Time:Early Cretaceous
Dating method:The most recent dates (#40#Ar-#39#Ar) for the Awahab quartz latite units are 132·14 ± 0·40 and 131·90 ± 0·58 Ma for the Gobobseb quartz latite Units I and II, and 132·03 ± 0·40 Ma for the Springbok quartz latite, the ages overlapping within experimenta
Reference for age:

The Goboboseb Mountains cover an area of 1100 km² and are assigned to the Awahab Formation consisting of interbedded basalts & quartz latites that form part of the 132-135 million-year-old Etendeka Group. Strong evidence suggests the source of the Gobobobseb volcanic rocks comes from the Messum Complex. The highest peak of these mountains is the Tafelkop.

NOTE: The actual mountains where the famous amethyst and quartz crystals (sometimes in sceptre form) is mined are the Goboboseb Mountains (basalts of volcanic origin), located approximately 35 km west of the Brandberg (specimen labels often give the locality as Brandberg). The name "Brandberg crystal" or "Brandberg quartz" originates from the fact that the Brandberg (granite massif!) is a world wide known name and it is easier to explain than the Goboboseb range.

Mineral List

Mineral list contains entries from the region specified including sub-localities

25 valid minerals. 1 erroneous literature entry.

Rock Types Recorded

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Rock list contains entries from the region specified including sub-localities

Localities in this Region


This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Henn & Lieber (1993) Lapis Magazine: 10: 48.

Niedermayr, G., Palfi, A., and Wartha, R. (2002) Neue Amethyst- und Rauchquarzfunde aus den Goboboseb-Bergen in Namibia. Mineralien-Welt Magazine: 13 (6): 72-75 (in German).

Cairncross, B., and Bahmann, U. (2006) Minerals from the Goboboseb Mountains, Brandberg Region, Namibia. Rocks & Minerals: 81 (6): 442-457.

Cairncross, B. und Bahmann, U. (2007) Zepterquartz und prehnite vom Tafelkop, Namibia. Lapis, 32(6), 31-36.

Bezing, L. von, Bode, R. & Jahn, S. (2007) Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: (in German).

Böllinghaus, T., and van der Smit, M. (2007) Prächtige Amethyst-Fensterquarze aus den Goboboseb-Bergen. Lapis Magazine: 32 (6): 37-43.

Niedermayr, G., and Schnaitmann, E. A. (2010) Neuigkeiten aus Namibia. Mineralien-Welt Magazine: 21 (6): 89-96.

Haltern, 259-266 pp. (in English)

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