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
Grenzland I quarry, Neustadt in Sachsen, Sächsische Schweiz-Osterzgebirge, Saxony, Germany


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 Grenzland I quarry, Neustadt in Sachsen, Sächsische Schweiz-Osterzgebirge, Saxony, Germany
Data Identifiers
Mindat Occurrence Record ID:1287017
Long-form Identifier:1:3:1287017:4
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.0km (0.6 miles) ⓘValtengrund quarry, Neustadt in Sachsen, Sächsische Schweiz-Osterzgebirge, Saxony, Germany
1.7km (1.0 miles) ⓘUnnamed quarry, Neustadt in Sachsen, Sächsische Schweiz-Osterzgebirge, Saxony, Germany
14.8km (9.2 miles) ⓘFrisch Glück mine, Šluknov, Děčín District, Ústí nad Labem Region, Czech Republic
31.4km (19.5 miles) ⓘMlýny, Kytlice, Děčín District, Ústí nad Labem Region, Czech Republic
34.7km (21.6 miles) ⓘOßling Quarry, Oßling, Bautzen District, Saxony, Germany
35.2km (21.8 miles) ⓘDubring quarry, Wittichenau, Bautzen District, Saxony, Germany
35.3km (21.9 miles) ⓘJedlka, Malá Veleň, Děčín District, Ústí nad Labem Region, Czech Republic
42.6km (26.4 miles) ⓘRoztoky Intrusive Centre, Roztoky, Povrly, Ústí nad Labem District, Ústí nad Labem Region, Czech Republic
49.2km (30.6 miles) ⓘTin mine, Altenberg, Sächsische Schweiz-Osterzgebirge, Saxony, Germany
50.3km (31.3 miles) ⓘBarbora adit, Knöttel area, Krupka, Teplice District, Ústí nad Labem Region, Czech Republic
References
Sandmann, D., & Gutzmer, J. (2015). Nature and distribution of PGE mineralisation in gabbroic rocks of the Lusatian Block, Saxony, Germany Art und Verbreitung der PGE-Mineralisation in den gabbroiden Gesteinen des Lausitzer Blocks, Sachsen, Deutschland. Zeitschrift der Deutschen Gesellschaft für Geowissenschaften, 166(1), 35-53.
 
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