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
Marie Mine, Avery County, North Carolina, USA


Locality type:Mine
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 Marie Mine, Avery County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:881291
Long-form Identifier:1:3:881291:9
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.7km (0.5 miles) ⓘMeadow Mine, Avery County, North Carolina, USA
1.1km (0.7 miles) ⓘBad Branch Mine, Avery County, North Carolina, USA
1.3km (0.8 miles) ⓘCharley Burleson Mine, Avery County, North Carolina, USA
1.5km (0.9 miles) ⓘGeorge Burleson Mine, Plumtree, Avery County, North Carolina, USA
1.6km (1.0 miles) ⓘHouston Rock Mine, Avery County, North Carolina, USA
1.7km (1.1 miles) ⓘBobby Hughes Prospect, Plumtree, Avery County, North Carolina, USA
1.8km (1.1 miles) ⓘLincoln Rock Mine, Plumtree, Avery County, North Carolina, USA
1.8km (1.1 miles) ⓘBlack Mine, Plumtree, Avery County, North Carolina, USA
2.0km (1.2 miles) ⓘBug Rock Mine, Avery County, North Carolina, USA
2.0km (1.2 miles) ⓘPowdermill Mine (Big Shaft Mine; Powdermill Roughs Mine), Plumtree, Avery County, North Carolina, USA
References
USGS Professional Paper 577
Lesure, Frank Gardner (1968) Mica deposits of the Blue Ridge in North Carolina. Professional Paper 577. US Geological Survey doi:10.3133/pp577
 
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