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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Oligoclase from
Valhalla, Mount Pleasant, Westchester County, New York, USA


Locality type:Quarry
Classification
Species:Albite var: Oligoclase
Formula:(Na,Ca)[Al(Si,Al)Si2O8]
Comments:"peristerite"
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Oligoclase data
Locality Data:Click here to view Valhalla, Mount Pleasant, Westchester County, New York, USA
Data Identifiers
Mindat Occurrence Record ID:489362
Long-form Identifier:1:3:489362:2
GUID (UUID V4):0
Nearest other occurrences of Oligoclase
24.6km (15.3 miles) ⓘCrugers Emery Mine, Montrose, Cortlandt Township, Westchester County, New York, USA
27.9km (17.4 miles) ⓘFort George (192nd Street & Audubon Avenue), Washington Heights, Manhattan (New York County), New York City, New York, USA
30.0km (18.6 miles) ⓘClover Hill Mine, Croton Falls, Somers Township, Westchester County, New York, USA
30.6km (19.0 miles) ⓘ161st Street & Broadway, Manhattan (New York County), New York City, New York, USA
32.7km (20.3 miles) ⓘPhilips Mine (Philips Pyrite Mine; Anthony's Nose Pyrrhotite Mine), Town of Philipstown, Putnam County, New York, USA
33.3km (20.7 miles) ⓘAnthony's Nose, Cortlandt Township, Westchester County, New York, USA
34.2km (21.2 miles) ⓘFillow Quarry, Branchville, Redding, Fairfield County, Connecticut, USA
36.1km (22.4 miles) ⓘ93rd Street & Riverside Drive, Manhattan (New York County), New York City, New York, USA
36.5km (22.7 miles) ⓘ88th Street, Manhattan (New York County), New York City, New York, USA
36.9km (23.0 miles) ⓘGreenwood mine (Patterson mine), Town of Tuxedo, Orange County, New York, USA
References
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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