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Goboboseb Mts, Brandberg Area, Dâures, Erongo Region, Namibia

This page kindly sponsored by Bonifazio Willeit
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Latitude & Longitude (WGS84): 21° 9' 5'' South , 14° 18' 20'' East
Latitude & Longitude (decimal): -21.15139,14.30556
GeoHash:G#: kk4ptt8bp
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 (#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: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.

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25 valid minerals. 1 erroneous literature entry.

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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.

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