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Biotite from
Griffin Mine, Yancey 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 Griffin Mine, Yancey County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:869602
Long-form Identifier:1:3:869602:1
GUID (UUID V4):0
Nearest other occurrences of Biotite
2.1km (1.3 miles) ⓘHiggins Mine, Mitchell County, North Carolina, USA
2.7km (1.7 miles) ⓘBittner Mine, Yancey County, North Carolina, USA
2.7km (1.7 miles) ⓘSilly Mine, Yancey County, North Carolina, USA
3.0km (1.9 miles) ⓘSpec Mine (Speck Mine), Micaville, Celo, Yancey County, North Carolina, USA
3.4km (2.1 miles) ⓘGoogrock Mine, Mitchell County, North Carolina, USA
3.6km (2.2 miles) ⓘGeorges Fork Mine, Yancey County, North Carolina, USA
4.0km (2.5 miles) ⓘGrape Hollow Mine, Yancey County, North Carolina, USA
4.4km (2.7 miles) ⓘAyles Creek Mine, Yancey County, North Carolina, USA
4.4km (2.7 miles) ⓘJohnson's Cove Mine, Yancey County, North Carolina, USA
4.6km (2.9 miles) ⓘAmos Presnell Mine, Yancey 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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