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
Furudal quarry, Bäckseda, 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 Furudal quarry, Bäckseda, Vetlanda, Jönköping County, Sweden
Data Identifiers
Mindat Occurrence Record ID:275553
Long-form Identifier:1:3:275553:3
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.3km (0.8 miles) ⓘBråtåkra quarry, Bäckseda, Vetlanda, Jönköping County, Sweden
3.7km (2.3 miles) ⓘSjöholmen quarry, Bäckseda, Vetlanda, Jönköping County, Sweden
6.7km (4.2 miles) ⓘLindås, Alseda, Vetlanda, Jönköping County, Sweden
8.9km (5.5 miles) ⓘSlättåkra quartz quarry (Alseda), Slättåkra, Alseda, Vetlanda, Jönköping County, Sweden
9.2km (5.7 miles) ⓘViktors mine, Slättåkra, Alseda, Vetlanda, Jönköping County, Sweden
10.3km (6.4 miles) ⓘDikesgård, Slättåkra, Alseda, Vetlanda, Jönköping County, Sweden
13.7km (8.5 miles) ⓘÄdelfors, Alseda, Vetlanda, Jönköping County, Sweden
16.4km (10.2 miles) ⓘKarl XV mine, Fröderyd, Vetlanda, Jönköping County, Sweden
16.5km (10.2 miles) ⓘHökhult mine, Bäckaby, Vetlanda, Jönköping County, Sweden
16.7km (10.4 miles) ⓘDaläng mine, Fröderyd, Vetlanda, Jönköping County, Sweden
References
Shaikh-Persson-Sundberg-Wik: SGU Rep. 50 , 1989
 
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