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Biotite from
Auas Mountains Occurrences, Windhoek Rural, Khomas Region, Namibia


Locality type:Occurrence
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Auas Mountains Occurrences, Windhoek Rural, Khomas Region, Namibia
Data Identifiers
Mindat Occurrence Record ID:1432137
Long-form Identifier:1:3:1432137:1
GUID (UUID V4):0
Localities for Biotite in this Region
Regenstein Vent, Auas Mountains Occurrences, Windhoek Rural, Khomas Region, Namibia
Nearest other occurrences of Biotite
2.8km (1.8 miles) ⓘAris Quarries, Aris, Windhoek Rural, Khomas Region, Namibia
12.5km (7.8 miles) ⓘRegenstein Vent, Auas Mountains Occurrences, Windhoek Rural, Khomas Region, Namibia
26.5km (16.4 miles) ⓘOamities Mine, Oamities, Windhoek Rural, Khomas Region, Namibia
31.8km (19.8 miles) ⓘMatchless Mine, Friedenau Farm 16, Windhoek Rural, Khomas Region, Namibia
36.5km (22.7 miles) ⓘOtjihase Mine, Von Francois Farm 60, Windhoek Rural, Khomas Region, Namibia
40.1km (24.9 miles) ⓘStalhart volcanic field, Windhoek Rural, Khomas Region, Namibia
51.6km (32.0 miles) ⓘDuruchaus Farm 249, Windhoek Rural, Khomas Region, Namibia
54.6km (33.9 miles) ⓘGurumanas, Windhoek Rural, Khomas Region, Namibia
74.2km (46.1 miles) ⓘOtjisongati Mines, Okamuvia Farm 144, Seeis, Windhoek Rural, Khomas Region, Namibia
79.1km (49.1 miles) ⓘOnganja Mine, Helen Farm 235, Seeis, Windhoek Rural, Khomas Region, Namibia
References
Gevers, T. W. (1933). Alkali-rocks in the Auas Mountains, south of Windhoek, SWA. South African Journal of Geology, 36(1), 77-88. https://journals.co.za/doi/pdf/10.10520/AJA10120750_1737
Ferreira, C. A. M., Jacob, R. E., Marsh, J. S. (1979) Base-Metal Mineralization in Alkaline Pyroclastics - the Regenstein Vent, South West Africa. Transactions of the Geological Society of South Africa, 82.
Fitch, F. J., & Miller, J. A. (1984). Dating Karoo igneous rocks by the conventional K-Ar and 40Ar/39Ar age spectrum methods. In:Erlank, A.J. (ed.) Petrogenesis of the volcanic rocks of the Karoo Province. Geological Society of South Africa, Special Publication, 13, 247-266.
Von Knorring, O., & Franke, W. (1987). A preliminary note on the mineralogy and geochemistry of the Aris phonolite, SWA/Namibia. Communications of the Geological Survey of SW Africa/Namibia, 3, 61.
 
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