Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Biotite from
Mooihoek Farm 255 KT, Fetakgomo Tubatse Local Municipality, Sekhukhune District Municipality, Limpopo, South Africa


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 Mooihoek Farm 255 KT, Fetakgomo Tubatse Local Municipality, Sekhukhune District Municipality, Limpopo, South Africa
Data Identifiers
Mindat Occurrence Record ID:847676
Long-form Identifier:1:3:847676:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
21.1km (13.1 miles) ⓘAnnesley andalusite mine, Fetakgomo Tubatse Local Municipality, Sekhukhune District Municipality, Limpopo, South Africa
25.1km (15.6 miles) ⓘOnverwacht Mine, Steelpoort, Fetakgomo Tubatse Local Municipality, Sekhukhune District Municipality, Limpopo, South Africa
27.1km (16.9 miles) ⓘHavercroft andalusite mine, Fetakgomo Tubatse Local Municipality, Sekhukhune District Municipality, Limpopo, South Africa
49.1km (30.5 miles) ⓘHelena Chrome Mine, Fetakgomo Tubatse Local Municipality, Sekhukhune District Municipality, Limpopo, South Africa
57.7km (35.8 miles) ⓘSpitskop Alkaline Igneous Complex, Makhuduthamaga Local Municipality, Sekhukhune District Municipality, Limpopo, South Africa
59.9km (37.2 miles) ⓘBooysendal North Mine, Fetakgomo Tubatse Local Municipality, Sekhukhune District Municipality, Limpopo, South Africa
82.8km (51.4 miles) ⓘCobra pit, Gravelotte Emerald Mine, Gravelotte, Murchison Range, Ba-Phalaborwa Local Municipality, Mopani District Municipality, Limpopo, South Africa
References
Rudashevsky, N. S., Avdontsev, S. N., Dneprovskaya, M. B. (1992) Evolution of PGE mineralization in hortonolitic dunites of the Mooihoek and Onverwacht pipes, Bushveld Complex. Mineralogy and Petrology, 47 (1) 37-54 doi:10.1007/bf01165296
 
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