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
Vissmålen quarry, Rogberga, Jönköping, 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 Vissmålen quarry, Rogberga, Jönköping, Jönköping County, Sweden
Data Identifiers
Mindat Occurrence Record ID:275508
Long-form Identifier:1:3:275508:3
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.2km (0.7 miles) ⓘBråneryd quarry, Huskvarna, Jönköping, Jönköping County, Sweden
8.6km (5.4 miles) ⓘMariebo quarry, Sofia, Jönköping, Jönköping County, Sweden
9.4km (5.8 miles) ⓘMad quarry, Skärstad, Jönköping, Jönköping County, Sweden
9.4km (5.9 miles) ⓘVista kulle quarry, Skärstad, Jönköping, Jönköping County, Sweden
9.8km (6.1 miles) ⓘUbbarp quarry, Barnarp, Jönköping, Jönköping County, Sweden
12.1km (7.5 miles) ⓘLabbarp quarry, Bankeryd, Jönköping, Jönköping County, Sweden
13.3km (8.2 miles) ⓘKällarp quarry, Barnarp, Jönköping, Jönköping County, Sweden
14.0km (8.7 miles) ⓘGröpshult quarry, Järstorp, Jönköping, Jönköping County, Sweden
15.5km (9.6 miles) ⓘSmålands Taberg, Månsarp, Jönköping, Jönköping County, Sweden
21.2km (13.2 miles) ⓘTossehall quarry, Ölmstad, Jönköping, Jönköping County, Sweden
References
Shaikh-Persson-Sundberg-Wik: SGU Rep. 50 , 1989
 
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