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
Lukov outcrop, Lukov, Teplice District, Ústí nad Labem Region, Czech Republic


06588130017731020919489.jpg
Biotite

Lukov outcrop, Lukov, Teplice District, Ústí nad Labem Region, Czech Republic
06588130017731020919489.jpg
Biotite

Lukov outcrop, Lukov, Teplice District, Ústí nad Labem Region, Czech Republic
04271490017271996743032.jpg
Biotite

Lukov outcrop, Lukov, Teplice District, Ústí nad Labem Region, Czech Republic
Locality type:Outcrop
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 Lukov outcrop, Lukov, Teplice District, Ústí nad Labem Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:525472
Long-form Identifier:1:3:525472:9
GUID (UUID V4):0
Nearest other occurrences of Biotite
6.6km (4.1 miles) ⓘPaškapole, Bořislav, Teplice District, Ústí nad Labem Region, Czech Republic
8.1km (5.1 miles) ⓘBasalt quarry, Měrunice, Teplice District, Ústí nad Labem Region, Czech Republic
8.7km (5.4 miles) ⓘŽichov tuff occurrence, Žichov, Měrunice, Teplice District, Ústí nad Labem Region, Czech Republic
17.9km (11.1 miles) ⓘVečerní Hvězda adit, Knöttel area, Krupka, Teplice District, Ústí nad Labem Region, Czech Republic
18.1km (11.2 miles) ⓘVáclav adit, Knöttel area, Krupka, Teplice District, Ústí nad Labem Region, Czech Republic
18.1km (11.3 miles) ⓘBarbora adit, Knöttel area, Krupka, Teplice District, Ústí nad Labem Region, Czech Republic
18.3km (11.4 miles) ⓘVrchoslav fluorite deposit, Vrchoslav, Krupka, Teplice District, Ústí nad Labem Region, Czech Republic
18.6km (11.6 miles) ⓘLoučná, Lom, Most District, Ústí nad Labem Region, Czech Republic
18.6km (11.6 miles) ⓘNový Martin adit, Steinknochen area, Krupka, Teplice District, Ústí nad Labem Region, Czech Republic
23.5km (14.6 miles) ⓘBýčkovice Intrusions, Býčkovice, Litoměřice District, Ústí nad Labem Region, Czech Republic
References
Ulrych, J., Kašpar, P. (1977): Physical and chemical properties of the oxikaersutite from Lukov, NW Bohemia, Czechoslovakia. Acta Universitatis Carolinae – Geologica, 21 (3-4), 245-265.
 
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