Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Willemite from
Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia


09917710017675483789450.jpg
Willemite

Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia
08944130017680020334506.jpg
Willemite

Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia
09881240017675484734596.jpg
Willemite

Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia
06079700017849876249936.jpg
Willemite

Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia
07192080017675483777576.jpg
Willemite

Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia
08898850017675487875635.jpg
Willemite

Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia
08554440017675484722022.jpg
Willemite

Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia
00285380017849876238017.jpg
Willemite

Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia
09917710017675483789450.jpg
Willemite

Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia
08944130017680020334506.jpg
Willemite

Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia
09881240017675484734596.jpg
Willemite

Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia
06079700017849876249936.jpg
Willemite

Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia
Locality type:Mine
Classification
Species:Willemite
Formula:Zn2SiO4
Comments:Crystals up to 1cm found in vugs, as aggregate bundles or radiating rosettes.
Habit:Massive, needle-like prismatic hexagonal
Colour:White, pale yellow-white, red-brown.
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Smithsonite44
Descloizite9
Cerussite5
Calcite2
Dolomite2
Mimetite1
Sphalerite1
Data
Mineral Data:Click here to view Willemite data
Locality Data:Click here to view Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia
Photo GalleryView Gallery (24 photos)
Data Identifiers
Mindat Occurrence Record ID:12640
Long-form Identifier:1:3:12640:5
GUID (UUID V4):0
Nearest other occurrences of Willemite
29.0km (18.0 miles) ⓘAbenab West Mine, Abenab, Grootfontein Constituency, Otjozondjupa Region, Namibia
30.0km (18.6 miles) ⓘAbenab Mine, Abenab, Grootfontein Constituency, Otjozondjupa Region, Namibia
49.2km (30.6 miles) ⓘGuchab-Rodgerberg area, Otavi Constituency, Otjozondjupa Region, Namibia
63.7km (39.6 miles) ⓘTsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia
75.7km (47.0 miles) ⓘBaltika Mine, Baltika Farm 515, Otavi Constituency, Otjozondjupa Region, Namibia
References
Cairncross, Bruce (1997) The Otavi Mountain Land Cu-Pb-Zn-V Deposits, Namibia. The Mineralogical Record, 28 (2) 109-130p.119
Laukamp, Carsten (2006) Structural and fluid system evolution in the Otavi Mountainland (Namibia) and its significance for the genesis of sulphide and nonsulphide mineralisation. Ruprecht-Karls-Universität.
von Bezing, Ludi (2007) Namibia - Minerals and Localities (1st ed.). Bode Verlag GmbH.
 
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