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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Pyrite from
Griggstown Mine (Franklin Mine), Griggstown, Franklin Township, Somerset County, New Jersey, USA


Locality type:Mine
Classification
Species:Pyrite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Griggstown Mine (Franklin Mine), Griggstown, Franklin Township, Somerset County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:79111
Long-form Identifier:1:3:79111:1
GUID (UUID V4):0
Nearest other occurrences of Pyrite
2.7km (1.7 miles) ⓘTrap Rock Industries Kingston Quarry, Kingston Trap Rock Quarry, Franklin Township, Somerset County, New Jersey, USA
10.2km (6.3 miles) ⓘMargerum Brothers Quarry, West Windsor Township, Mercer County, New Jersey, USA
13.5km (8.4 miles) ⓘNeshanic, Hillsborough Township, Somerset County, New Jersey, USA
13.5km (8.4 miles) ⓘRosedale, Lawrence Township, Mercer County, New Jersey, USA
14.7km (9.1 miles) ⓘBurnt Woods, New Brunswick, Middlesex County, New Jersey, USA
16.0km (9.9 miles) ⓘMoore's Station, Hopewell Township, Mercer County, New Jersey, USA
17.3km (10.7 miles) ⓘLawrenceville, Lawrence Township, Mercer County, New Jersey, USA
18.5km (11.5 miles) ⓘVan Horne's pit, New Brunswick, Middlesex County, New Jersey, USA
19.2km (12.0 miles) ⓘMartin's Dock, Edison, Middlesex County, New Jersey, USA
21.5km (13.3 miles) ⓘEdgar's pit, Sayreville, Middlesex County, New Jersey, USA
References
The Minerals of NYC & Its Environs, NY Min. Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931): 35. .
 
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