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


Locality type:Volcanic Vent
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 Regenstein Vent, Auas Mountains Occurrences, Windhoek Rural, Khomas Region, Namibia
Data Identifiers
Mindat Occurrence Record ID:1432152
Long-form Identifier:1:3:1432152:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
11.1km (6.9 miles) ⓘAris Quarries, Aris, Windhoek Rural, Khomas Region, Namibia
12.5km (7.8 miles) ⓘAuas Mountains Occurrences, Windhoek Rural, Khomas Region, Namibia
19.3km (12.0 miles) ⓘMatchless Mine, Friedenau Farm 16, Windhoek Rural, Khomas Region, Namibia
27.6km (17.1 miles) ⓘOamities Mine, Oamities, Windhoek Rural, Khomas Region, Namibia
37.8km (23.5 miles) ⓘOtjihase Mine, Von Francois Farm 60, Windhoek Rural, Khomas Region, Namibia
38.9km (24.2 miles) ⓘStalhart volcanic field, Windhoek Rural, Khomas Region, Namibia
48.0km (29.8 miles) ⓘDuruchaus Farm 249, Windhoek Rural, Khomas Region, Namibia
51.6km (32.1 miles) ⓘGurumanas, Windhoek Rural, Khomas Region, Namibia
77.5km (48.1 miles) ⓘOtjisongati Mines, Okamuvia Farm 144, Seeis, Windhoek Rural, Khomas Region, Namibia
83.4km (51.8 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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