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
Fagerhultasjön quarry, Karlstorp, Vetlanda, Jönköping County, Sweden


Locality type:Quarry
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 Fagerhultasjön quarry, Karlstorp, Vetlanda, Jönköping County, Sweden
Data Identifiers
Mindat Occurrence Record ID:275547
Long-form Identifier:1:3:275547:2
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.4km (0.9 miles) ⓘLjunganäs quartz quarry, Karlstorp, Vetlanda, Jönköping County, Sweden
10.8km (6.7 miles) ⓘÄdelfors, Alseda, Vetlanda, Jönköping County, Sweden
13.4km (8.3 miles) ⓘDikesgård, Slättåkra, Alseda, Vetlanda, Jönköping County, Sweden
14.1km (8.7 miles) ⓘViktors mine, Slättåkra, Alseda, Vetlanda, Jönköping County, Sweden
14.7km (9.1 miles) ⓘSlättåkra quartz quarry (Alseda), Slättåkra, Alseda, Vetlanda, Jönköping County, Sweden
15.4km (9.6 miles) ⓘLindås, Alseda, Vetlanda, Jönköping County, Sweden
19.5km (12.1 miles) ⓘFurudal quarry, Bäckseda, Vetlanda, Jönköping County, Sweden
19.8km (12.3 miles) ⓘBråtåkra quarry, Bäckseda, Vetlanda, Jönköping County, Sweden
21.6km (13.4 miles) ⓘSjöholmen quarry, Bäckseda, Vetlanda, Jönköping County, Sweden
25.5km (15.8 miles) ⓘNömme quartz quarry, Höreda, Eksjö, Jönköping County, Sweden
References
Shaikh-Persson-Sundberg-Wik: SGU Rep. 50 , 1989
 
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