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
Dehart Feldspar Mine, Bryson City Feldspar Mining District, Swain 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 Dehart Feldspar Mine, Bryson City Feldspar Mining District, Swain County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:341908
Long-form Identifier:1:3:341908:3
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.9km (1.2 miles) ⓘPayne and Sullivan Kaolin Mine, Bryson City Feldspar Mining District, Swain County, North Carolina, USA
2.0km (1.2 miles) ⓘHarrison T. Crisp Feldspar Prospect, Bryson City Feldspar Mining District, Swain County, North Carolina, USA
3.5km (2.2 miles) ⓘBall No. 1 Feldspar Mine, Bryson City Feldspar Mining District, Swain County, North Carolina, USA
4.2km (2.6 miles) ⓘMason Feldspar Prospect, Bryson City Feldspar Mining District, Swain County, North Carolina, USA
4.7km (2.9 miles) ⓘCochran Feldspar Prospect, Bryson City Feldspar Mining District, Swain County, North Carolina, USA
5.1km (3.2 miles) ⓘHyatt No. 2 Feldspar Prospect, Bryson City Feldspar Mining District, Swain County, North Carolina, USA
5.3km (3.3 miles) ⓘLackey Feldspar Mine, Bryson City Feldspar Mining District, Swain County, North Carolina, USA
5.4km (3.4 miles) ⓘCox No. 2 Feldspar and Kaolin Mine, Bryson City Feldspar Mining District, Swain County, North Carolina, USA
5.4km (3.4 miles) ⓘCox No. 1 Feldspar and Kaolin Mine, Bryson City Feldspar Mining District, Swain County, North Carolina, USA
5.7km (3.5 miles) ⓘSouth McCracken Feldspar and Kaolin Prospect, Bryson City Feldspar Mining District, Swain County, North Carolina, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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