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
Nkomati Mine, Uitkomst Complex, Waterval, Chief Albert Luthuli Local Municipality, Gert Sibande District Municipality, Mpumalanga, South Africa


Locality type:Mine
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 Nkomati Mine, Uitkomst Complex, Waterval, Chief Albert Luthuli Local Municipality, Gert Sibande District Municipality, Mpumalanga, South Africa
Data Identifiers
Mindat Occurrence Record ID:1408188
Long-form Identifier:1:3:1408188:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.6km (0.4 miles) ⓘUitkomst Complex, Waterval, Chief Albert Luthuli Local Municipality, Gert Sibande District Municipality, Mpumalanga, South Africa
45.9km (28.5 miles) ⓘNew Consort Mine, Barberton, Mbombela Local Municipality, Ehlanzeni District Municipality, Mpumalanga, South Africa
56.6km (35.2 miles) ⓘWest dump, Havelock Mine, Bulembu, Hhohho Region, Eswatini
57.0km (35.4 miles) ⓘEast dump, Havelock Mine, Bulembu, Hhohho Region, Eswatini
80.5km (50.0 miles) ⓘTokwane pegmatites, Mbabane, Hhohho Region, Eswatini
88.0km (54.7 miles) ⓘBooysendal North Mine, Fetakgomo Tubatse Local Municipality, Sekhukhune District Municipality, Limpopo, South Africa
96.5km (60.0 miles) ⓘHelena Chrome Mine, Fetakgomo Tubatse Local Municipality, Sekhukhune District Municipality, Limpopo, South Africa
97.3km (60.5 miles) ⓘM'hlati prospect, Barberton, Mbombela Local Municipality, Ehlanzeni District Municipality, Mpumalanga, South Africa
References
 
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