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Biotite from
Rawlinsville, Martic Township, Lancaster County, Pennsylvania, USA


Locality type:Unincorporated Community
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 Rawlinsville, Martic Township, Lancaster County, Pennsylvania, USA
Data Identifiers
Mindat Occurrence Record ID:855816
Long-form Identifier:1:3:855816:9
GUID (UUID V4):0
Nearest other occurrences of Biotite
10.6km (6.6 miles) ⓘSafe Harbor Quarry, Safe Harbor, Conestoga Township, Lancaster County, Pennsylvania, USA
17.9km (11.1 miles) ⓘGap Mine, Bart Township, Lancaster County, Pennsylvania, USA
22.5km (14.0 miles) ⓘDinning Rutile prospect, Clermont Mills, Harford County, Maryland, USA
25.6km (15.9 miles) ⓘGoat Hill Barrens, West Nottingham Township, Chester County, Pennsylvania, USA
26.5km (16.5 miles) ⓘCounty Line Quarry, Wrightsville, York County, Pennsylvania, USA
36.1km (22.4 miles) ⓘPort Deposit Quarry (Port Deposit Granite Company), Cecil County, Maryland, USA
39.5km (24.5 miles) ⓘCoatesville pegmatite locality, Coatesville, Chester County, Pennsylvania, USA
39.7km (24.7 miles) ⓘGatch Quarry (Gatch Crushed Stone Company Inc.), Harford County, Maryland, USA
44.2km (27.4 miles) ⓘCornwall Mines (Cornwall Iron Mine), Cornwall Borough (Cornwall), Lebanon County, Pennsylvania, USA
46.1km (28.7 miles) ⓘGrace Mine, Morgantown, Berks County, Pennsylvania, USA
References
Hietanen, Anna (1951) Chloritoid from Rawlinsville, Lancaster County, Pennsylvania. American Mineralogist, 36 (11-12) 859-868
 
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