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
Mariebo quarry, Sofia, 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 Mariebo quarry, Sofia, Jönköping, Jönköping County, Sweden
Data Identifiers
Mindat Occurrence Record ID:275583
Long-form Identifier:1:3:275583:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
6.5km (4.0 miles) ⓘGröpshult quarry, Järstorp, Jönköping, Jönköping County, Sweden
7.8km (4.9 miles) ⓘLabbarp quarry, Bankeryd, Jönköping, Jönköping County, Sweden
8.6km (5.4 miles) ⓘVissmålen quarry, Rogberga, Jönköping, Jönköping County, Sweden
9.8km (6.1 miles) ⓘBråneryd quarry, Huskvarna, Jönköping, Jönköping County, Sweden
10.9km (6.8 miles) ⓘUbbarp quarry, Barnarp, Jönköping, Jönköping County, Sweden
11.5km (7.1 miles) ⓘSmålands Taberg, Månsarp, Jönköping, Jönköping County, Sweden
12.0km (7.4 miles) ⓘVista kulle quarry, Skärstad, Jönköping, Jönköping County, Sweden
12.1km (7.5 miles) ⓘKällarp quarry, Barnarp, Jönköping, Jönköping County, Sweden
12.8km (7.9 miles) ⓘMad quarry, Skärstad, Jönköping, Jönköping County, Sweden
26.4km (16.4 miles) ⓘTossehall quarry, Ölmstad, Jönköping, Jönköping County, Sweden
References
Shaikh-Persson-Sundberg-Wik: SGU Rep. 50 , 1989
 
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