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Biotite from
M. P. Letterman 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 M. P. Letterman Mine, Yancey County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:868796
Long-form Identifier:1:3:868796:8
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.9km (1.2 miles) ⓘLaws Mine, Yancey County, North Carolina, USA
3.3km (2.0 miles) ⓘWilliam Hughes Mine, Yancey County, North Carolina, USA
3.8km (2.3 miles) ⓘJim Curl Mine, Yancey County, North Carolina, USA
4.7km (2.9 miles) ⓘSilly Mine, Yancey County, North Carolina, USA
4.7km (2.9 miles) ⓘBittner Mine, Yancey County, North Carolina, USA
5.0km (3.1 miles) ⓘHorse Ridge Mine, Yancey County, North Carolina, USA
5.6km (3.5 miles) ⓘCarroll Deyton Mine, Yancey County, North Carolina, USA
6.0km (3.7 miles) ⓘGriffin Mine, Yancey County, North Carolina, USA
6.6km (4.1 miles) ⓘChestnut Branch Mine, Double Island, Yancey County, North Carolina, USA
6.7km (4.2 miles) ⓘHiggins Mine, 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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