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
Årset silver mine, Fröderyd, Vetlanda, Jönköping County, Sweden


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 Årset silver mine, Fröderyd, Vetlanda, Jönköping County, Sweden
Data Identifiers
Mindat Occurrence Record ID:273779
Long-form Identifier:1:3:273779:9
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.2km (0.1 miles) ⓘNya Ludvigsberg mine, Fröderyd, Vetlanda, Jönköping County, Sweden
0.2km (0.1 miles) ⓘAndersberg mine, Fredriksberg ore field, Fröderyd, Vetlanda, Jönköping County, Sweden
0.7km (0.4 miles) ⓘNorthwest Fredriksberg mine, Fröderyd, Vetlanda, Jönköping County, Sweden
0.7km (0.4 miles) ⓘDaläng mine, Fröderyd, Vetlanda, Jönköping County, Sweden
0.7km (0.5 miles) ⓘChristina mine, Fröderyd, Vetlanda, Jönköping County, Sweden
0.9km (0.5 miles) ⓘKarl XV mine, Fröderyd, Vetlanda, Jönköping County, Sweden
1.4km (0.8 miles) ⓘTrädgårds Mine, Fredriksberg ore field, Fröderyd, Vetlanda, Jönköping County, Sweden
2.5km (1.5 miles) ⓘKallsjö mine, Fröderyd, Vetlanda, Jönköping County, Sweden
3.1km (1.9 miles) ⓘHökhult mine, Bäckaby, Vetlanda, Jönköping County, Sweden
7.4km (4.6 miles) ⓘHörnebo, Ramkvilla, Vetlanda, Jönköping County, Sweden
References
Tegengren, F. R. (1924) Sveriges ädlare malmer och bergverk [Noble Ores and Mines of Sweden]. Avhandlingar och uppsatser. Serie Ca 17. Sveriges Geologiska Undersökning
 
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