Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Biotite from
Lenoir Quarry, Lenoir, Caldwell County, North Carolina, USA


Locality type:Quarry
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 Lenoir Quarry, Lenoir, Caldwell County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:769042
Long-form Identifier:1:3:769042:6
GUID (UUID V4):0
Nearest other occurrences of Biotite
8.5km (5.3 miles) ⓘCausby Gneiss Quarry, Morganton, Caldwell County, North Carolina, USA
21.9km (13.6 miles) ⓘSigmon Mine, Catawba County, North Carolina, USA
24.3km (15.1 miles) ⓘUnnamed Gneiss Quarry GI-022 (MRDS - 10106098), Morganton, Burke County, North Carolina, USA
24.4km (15.2 miles) ⓘMorganton Quarry (Vulcan Materials Co. Quarry), Morganton, Burke County, North Carolina, USA
26.9km (16.7 miles) ⓘThunder Hill Overlook, Blue Ridge Parkway, Watauga County, North Carolina, USA
28.9km (17.9 miles) ⓘTate Boulevard Industrial Park, Hickory, Catawba County, North Carolina, USA
29.0km (18.0 miles) ⓘMartin Marietta Quarry (Hickory Quarry), Hickory, Catawba County, North Carolina, USA
30.0km (18.6 miles) ⓘUranium Prospect (MRDS - 10151415), North Harper Creek, Avery County, North Carolina, USA
30.2km (18.8 miles) ⓘWike Prospect, Catawba County, North Carolina, USA
31.8km (19.7 miles) ⓘFloyd Brittan Mine, Burke County, North Carolina, USA
References
Robert D.Hatcher Jr. and Brendan R.Bean (2002) Inner Piedmont geology in the Southern Mountains-Blue Ridge Foothills and the southwestern Brushy Mountains,Central-Western North Carolina:Carolina Geological Society Annual Field Trip October 19-20,2002
 
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