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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Amphibole Supergroup from
Anthony's Nose, Cortlandt Township, Westchester County, New York, USA


Classification
Species:'Amphibole Supergroup' (not an IMA approved species)
Formula:AB2C5(T8O22)W2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Amphibole Supergroup data
Locality Data:Click here to view Anthony's Nose, Cortlandt Township, Westchester County, New York, USA
Data Identifiers
Mindat Occurrence Record ID:80608
Long-form Identifier:1:3:80608:8
GUID (UUID V4):0
Nearest other occurrences of Amphibole Supergroup
5.8km (3.6 miles) ⓘPeekskill, Westchester County, New York, USA
6.2km (3.8 miles) ⓘForest of Dean Mine, Fort Montgomery, Town of Highlands, Orange County, New York, USA
6.5km (4.0 miles) ⓘCranberry Mine, Harriman State Park, Orange County, New York, USA
7.7km (4.8 miles) ⓘLewis Mine (Dunn Mine), Harriman State Park, Orange County, New York, USA
8.1km (5.0 miles) ⓘBog Meadow Pond, Town of Highlands, Orange County, New York, USA
8.2km (5.1 miles) ⓘWest Point, Orange County, New York, USA
8.7km (5.4 miles) ⓘCrugers Emery Mine, Montrose, Cortlandt Township, Westchester County, New York, USA
10.5km (6.5 miles) ⓘCroft Mine, Oscawana Corners, Town of Putnam Valley, Putnam County, New York, USA
10.7km (6.7 miles) ⓘTwin Lakes, Woodbury, Orange County, New York, USA
10.8km (6.7 miles) ⓘNickel Mine (Bulson lot), Grape Swamp Mountain, Harriman State Park, Rockland County, New York, USA
References
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.64
 
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