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Biotite from
County Line Quarry, Wrightsville, York County, Pennsylvania, 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 County Line Quarry, Wrightsville, York County, Pennsylvania, USA
Data Identifiers
Mindat Occurrence Record ID:433453
Long-form Identifier:1:3:433453:8
GUID (UUID V4):0
Nearest other occurrences of Biotite
16.0km (9.9 miles) ⓘSafe Harbor Quarry, Safe Harbor, Conestoga Township, Lancaster County, Pennsylvania, USA
26.5km (16.5 miles) ⓘRawlinsville, Martic Township, Lancaster County, Pennsylvania, USA
30.3km (18.8 miles) ⓘCornwall Mines (Cornwall Iron Mine), Cornwall Borough (Cornwall), Lebanon County, Pennsylvania, USA
37.0km (23.0 miles) ⓘDinning Rutile prospect, Clermont Mills, Harford County, Maryland, USA
38.5km (23.9 miles) ⓘGap Mine, Bart Township, Lancaster County, Pennsylvania, USA
52.0km (32.3 miles) ⓘGoat Hill Barrens, West Nottingham Township, Chester County, Pennsylvania, USA
58.0km (36.0 miles) ⓘGrace Mine, Morgantown, Berks County, Pennsylvania, USA
58.1km (36.1 miles) ⓘHunt Valley Mall outcrop, Cockeysville, Baltimore County, Maryland, USA
58.9km (36.6 miles) ⓘGatch Quarry (Gatch Crushed Stone Company Inc.), Harford County, Maryland, USA
60.1km (37.3 miles) ⓘCoatesville pegmatite locality, Coatesville, Chester County, Pennsylvania, USA
References
The Mineralogy of Pennsylvania 1966-1975
Robert C. Smith II, pgs. 23-30
 
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