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Biotite from
Wright Quarry, Stony Run, Baltimore City, Maryland, 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 Wright Quarry, Stony Run, Baltimore City, Maryland, USA
Data Identifiers
Mindat Occurrence Record ID:904729
Long-form Identifier:1:3:904729:7
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.3km (0.2 miles) ⓘStony Run, Baltimore City, Maryland, USA
1.5km (0.9 miles) ⓘJones Falls Quarries, Baltimore City, Maryland, USA
6.4km (4.0 miles) ⓘHilton Quarry, Baltimore City, Maryland, USA
7.9km (4.9 miles) ⓘStaurolite locality, Rockland, Baltimore County, Maryland, USA
8.1km (5.1 miles) ⓘMcMahon Quarry (Greenspring Quarry), Pikesville, Baltimore County, Maryland, USA
12.6km (7.8 miles) ⓘMarble/pegmatite quarry, Loch Raven, Carney, Baltimore County, Maryland, USA
14.4km (8.9 miles) ⓘArundel Quarry, Baltimore County, Maryland, USA
16.0km (9.9 miles) ⓘGaither's Quarry, Baltimore County, Maryland, USA
16.5km (10.3 miles) ⓘEllicott City, Howard County, Maryland, USA
16.7km (10.4 miles) ⓘWeber's Quarry, Ellicott City, Howard County, Maryland, USA
References
Ostrander, Charles W., Price, Jr, Walter E. (1940) Minerals of Maryland. The Natural History Society of Maryland, Baltimore, Maryland, USA. 14pp.
 
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