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
Unnamed Occurrence (ARDF - NM112; Windy Creek), Nome Mining District, Nome Census Area, Alaska, USA


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 Unnamed Occurrence (ARDF - NM112; Windy Creek), Nome Mining District, Nome Census Area, Alaska, USA
Data Identifiers
Mindat Occurrence Record ID:593691
Long-form Identifier:1:3:593691:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
2.9km (1.8 miles) ⓘUnnamed Occurrence (ARDF - NM113; Cobblestone River), Nome Mining District, Nome Census Area, Alaska, USA
5.7km (3.5 miles) ⓘUnnamed Occurrence (ARDF - NM023; Windy Creek), Nome Mining District, Nome Census Area, Alaska, USA
10.1km (6.3 miles) ⓘRuby Creek Prospect, Port Clarence Mining District, Nome Census Area, Alaska, USA
10.1km (6.3 miles) ⓘGraphite Creek Mine, Port Clarence Mining District, Nome Census Area, Alaska, USA
11.1km (6.9 miles) ⓘChristophosen Creek Mine, Port Clarence Mining District, Nome Census Area, Alaska, USA
80.5km (50.0 miles) ⓘUnnamed Prospect (ARDF - BN110; in headwaters of Niukluk River), Council Mining District, Nome Census Area, Alaska, USA
84.7km (52.7 miles) ⓘKougarok prospect (Kougarok Sn deposit), Serpentine Mining District, Nome Census Area, Alaska, USA
93.2km (57.9 miles) ⓘSaddle Prospect, Council Mining District, Nome Census Area, Alaska, USA
95.6km (59.4 miles) ⓘPargon Mountain Mine, Council Mining District, Nome Census Area, Alaska, USA
97.8km (60.7 miles) ⓘLost River skarn deposit, Lost River Mine, Lost River Valley, Port Clarence Mining District, Nome Census Area, Alaska, USA
References
(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey
 
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