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
Grimberg quarry, Eksjö, 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 Grimberg quarry, Eksjö, Jönköping County, Sweden
Data Identifiers
Mindat Occurrence Record ID:275557
Long-form Identifier:1:3:275557:1
GUID (UUID V4):0
Nearest other occurrences of Biotite
5.1km (3.1 miles) ⓘRödberget quarry, Bredestad, Nässjö, Jönköping County, Sweden
5.4km (3.4 miles) ⓘSvällebäcken quarry, Eksjö, Jönköping County, Sweden
5.4km (3.4 miles) ⓘRisan quarry, Eksjö, Jönköping County, Sweden
7.3km (4.5 miles) ⓘSoåsen, Eksjö, Jönköping County, Sweden
9.7km (6.1 miles) ⓘRosenberg quarry, Askeryd, Aneby, Jönköping County, Sweden
10.5km (6.5 miles) ⓘEldstorp 2-quarry, Askeryd, Aneby, Jönköping County, Sweden
10.9km (6.8 miles) ⓘEldstorp 1 Quarry, Askeryd, Aneby, Jönköping County, Sweden
11.0km (6.9 miles) ⓘSolberga quarry, Norra Solberga, Nässjö, Jönköping County, Sweden
11.1km (6.9 miles) ⓘLertorp quarry, Askeryd, Aneby, Jönköping County, Sweden
12.8km (8.0 miles) ⓘMurhemmet quarry, Flisby, Nässjö, Jönköping County, Sweden
References
Shaikh-Persson-Sundberg-Wik: SGU Rep. 50 , 1989
 
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