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
Kinkel Quarry, Bedford, Westchester County, New York, 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 Kinkel Quarry, Bedford, Westchester County, New York, USA
Data Identifiers
Mindat Occurrence Record ID:148291
Long-form Identifier:1:3:148291:1
GUID (UUID V4):0
Nearest other occurrences of Biotite
1.1km (0.7 miles) ⓘBaylis Quarry (Bayliss Quarry), Bedford, Westchester County, New York, USA
1.2km (0.7 miles) ⓘBedford, Westchester County, New York, USA
17.0km (10.6 miles) ⓘMc Collum Mine, North Salem, Westchester County, New York, USA
17.2km (10.7 miles) ⓘValhalla, Mount Pleasant, Westchester County, New York, USA
20.9km (13.0 miles) ⓘVoorhis Quarry, Greenwich, Fairfield County, Connecticut, USA
22.7km (14.1 miles) ⓘRedding Glen, Redding, Fairfield County, Connecticut, USA
24.0km (14.9 miles) ⓘTilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
24.3km (15.1 miles) ⓘInterstate 84 road cuts, Town of Southeast, Putnam County, New York, USA
24.9km (15.4 miles) ⓘWestern Connecticut State University, Danbury, Fairfield County, Connecticut, USA
24.9km (15.5 miles) ⓘCrugers Emery Mine, Montrose, Cortlandt Township, Westchester County, New York, USA
References
Rocks & Min.: 23:710-712.
Robinson, George W., Chamberlain, Steven C. (2007) Gazetteer of Major New York State Mineral Localities. Rocks & Minerals, 82 (6) 472-483 doi:10.3200/rmin.82.6.474-483
 
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