Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Biotite from
Thomas Mine (Balsam Gap kyanite location; Parkway kyanite location), Buncombe 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
Comments:A small pegmatite containing both kyanite and sillimanite as primary minerals.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Thomas Mine (Balsam Gap kyanite location; Parkway kyanite location), Buncombe County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:44653
Long-form Identifier:1:3:44653:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
10.0km (6.2 miles) ⓘMurphy Mine, South Toe River, Yancey County, North Carolina, USA
10.8km (6.7 miles) ⓘMiddle Ridge Mine, South Toe River, Yancey County, North Carolina, USA
12.6km (7.8 miles) ⓘRob Deyton Mine, South Toe River, Yancey County, North Carolina, USA
12.8km (8.0 miles) ⓘColberts Creek Mine (Wooley Knob Mine), South Toe River, Yancey County, North Carolina, USA
13.0km (8.1 miles) ⓘGeorge Moon Mine, South Toe River, Yancey County, North Carolina, USA
13.0km (8.1 miles) ⓘCarson Rock Mine, South Toe River, Yancey County, North Carolina, USA
13.6km (8.5 miles) ⓘWestall Mine, South Toe River, Yancey County, North Carolina, USA
13.7km (8.5 miles) ⓘBill Autrey Mine, South Toe River, Yancey County, North Carolina, USA
13.9km (8.7 miles) ⓘCattail Mine (Iscom Mine), Yancey County, North Carolina, USA
14.1km (8.8 miles) ⓘFlem McPeters Mine, Yancey County, North Carolina, USA
References
Wood, Keith Yates (1996)Petrogenesis And Geochemistry Of Kyanite-Bearing Pegmatites in The Buncombe Pegmatite District, North Carolina : Virginia Polytechnic Institute and State University
 
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