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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Pyroxene Group from
Croft Mine, Oscawana Corners, Town of Putnam Valley, Putnam County, New York, USA


Locality type:Mine
Classification
Species:'Pyroxene Group' (not an IMA approved species)
Formula:ADSi2O6
Colour:Green
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyroxene Group data
Locality Data:Click here to view Croft Mine, Oscawana Corners, Town of Putnam Valley, Putnam County, New York, USA
Data Identifiers
Mindat Occurrence Record ID:80883
Long-form Identifier:1:3:80883:7
GUID (UUID V4):0
Nearest other occurrences of Pyroxene Group
7.7km (4.8 miles) ⓘPhilipstown, Cold Spring, Town of Philipstown, Putnam County, New York, USA
10.1km (6.3 miles) ⓘMahopac Mines, Town of Carmel, Putnam County, New York, USA
10.5km (6.5 miles) ⓘAnthony's Nose, Cortlandt Township, Westchester County, New York, USA
14.0km (8.7 miles) ⓘForest of Dean Mine, Fort Montgomery, Town of Highlands, Orange County, New York, USA
14.3km (8.9 miles) ⓘCrugers Emery Mine, Montrose, Cortlandt Township, Westchester County, New York, USA
16.0km (9.9 miles) ⓘVerplanck Point, Verplanck, Cortlandt Township, Westchester County, New York, USA
18.7km (11.6 miles) ⓘTwin Lakes, Woodbury, Orange County, New York, USA
19.7km (12.2 miles) ⓘCentral Valley, Town of Woodbury, Orange County, New York, USA
20.1km (12.5 miles) ⓘTilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
21.7km (13.5 miles) ⓘBradley Mine, Town of Tuxedo, Orange County, New York, USA
References
Clarke, John M. (1921, September) The Magnetite Iron Deposits of Southeastern New York. New York State Museum Bulletin Vol. 249-250. The University of the State of New Yorkp.117
Manchester, James G. (1931) The Minerals of New York City and its Environs. Bulletin of the New York Mineralogical Club Vol. 3 (1). New York Mineralogical Clubp.69
 
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