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
Roby Mica Mine (Tim Twiggs Mine), Hawk-Bakersville, Mitchell 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 Roby Mica Mine (Tim Twiggs Mine), Hawk-Bakersville, Mitchell County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:954010
Long-form Identifier:1:3:954010:1
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.2km (0.1 miles) ⓘBen Mica Prospect, Hawk-Bakersville, Mitchell County, North Carolina, USA
0.7km (0.4 miles) ⓘLick Ridge, Bakersville, Mitchell County, North Carolina, USA
0.9km (0.6 miles) ⓘLick Ridge Mine, Mitchell County, North Carolina, USA
2.5km (1.6 miles) ⓘDewey McKinney Mica prospect, Hawk-Bakersville, Mitchell County, North Carolina, USA
2.6km (1.6 miles) ⓘPaul McMahan Mica prospect, Hawk-Bakersville, Mitchell County, North Carolina, USA
2.9km (1.8 miles) ⓘAzaline Mica Mine, Hawk-Bakersville, Mitchell County, North Carolina, USA
3.0km (1.9 miles) ⓘMossy Rocky Mica Mine, Hawk-Bakersville, Mitchell County, North Carolina, USA
3.0km (1.9 miles) ⓘDont Buchanan Mica Mine, Glen Ayre, Mitchell County, North Carolina, USA
3.1km (1.9 miles) ⓘBardon Mica Mine (Bordon Mine), Hawk-Bakersville, Mitchell County, North Carolina, USA
3.1km (1.9 miles) ⓘClarissa Mica Mine, Hawk-Bakersville, Mitchell County, North Carolina, USA
References
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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