|Latitude & Longitude (WGS84):||21° 9' 5'' South , 14° 18' 20'' East|
|Latitude & Longitude (decimal):||-21.15139,14.30556|
|Locality type:||Mountain Range|
|Age:||132.14 ± 0.40 to 131.90 ± 0.58 Ma|
|Geologic Time:||Early Cretaceous|
|Dating method:||The most recent dates (|
|Reference for age:||https://web.archive.org/web/20070317033342/http://www.oxfordjournals.org/our_journals/petroj/online/Volume_39/Issue_02/html/egb091_gml.html|
|Köppen climate type:||BWk : Cold desert climate|
The Goboboseb Mountains cover an area of 1100 km² and are assigned to the Awahab Formation consisting of interbedded basalts and quartz latites that form part of the 132-135 million-year-old Etendeka Group. Strong evidence suggests the source of the Goboboseb 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) are 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 worldwide known name and it is easier to explain than the Goboboseb range.
Mineral ListMineral 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
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Henn and 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. and Bahmann, U. (2007) Zepterquartz und prehnite vom Tafelkop, Namibia. Lapis, 32(6), 31-36.
von Bezing, L., Bode, R., and Jahn, S. (2007) Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern, 259-266 (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.