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
Uhlířský vrch, Bruntál, Bruntál District, Moravian-Silesian Region, Czech Republic


Locality type:Volcano
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 Uhlířský vrch, Bruntál, Bruntál District, Moravian-Silesian Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:858371
Long-form Identifier:1:3:858371:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
18.4km (11.4 miles) ⓘKyzový důl (Schwarzenthal), Loučná nad Desnou, Šumperk District, Olomouc Region, Czech Republic
18.8km (11.7 miles) ⓘMnišské jámy, Loučná nad Desnou, Šumperk District, Olomouc Region, Czech Republic
19.3km (12.0 miles) ⓘBřidličná hora, Vernířovice, Šumperk District, Olomouc Region, Czech Republic
21.2km (13.2 miles) ⓘKosaře, Vernířovice, Šumperk District, Olomouc Region, Czech Republic
23.2km (14.4 miles) ⓘŠvagrov, Vernířovice, Šumperk District, Olomouc Region, Czech Republic
24.5km (15.2 miles) ⓘRudná hora, Vernířovice, Šumperk District, Olomouc Region, Czech Republic
25.1km (15.6 miles) ⓘLysá hora (Kahlhübel), Maršíkov (Marchendorf), Velké Losiny, Šumperk District, Olomouc Region, Czech Republic
25.3km (15.7 miles) ⓘStřelecký důl (Scheibengraben), Maršíkov (Marchendorf), Velké Losiny, Šumperk District, Olomouc Region, Czech Republic
25.5km (15.8 miles) ⓘKluč Hill, Loučná nad Desnou, Šumperk District, Olomouc Region, Czech Republic
25.9km (16.1 miles) ⓘBiskupice Maars, Biskupice, Krnov, Bruntál District, Moravian-Silesian Region, Czech Republic
References
Kruťa, T. (1949) O nerostech, nerostných surovinách a předních nalezištích ve Slezsku. Přírodovědecký sborník (Sborník Přírodovědecké společnosti v Ostravě): 10: 281-319.
 
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