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
American Mine (Alpha Copper Mine; Bridgewater Mine; Somerville Mine; Somerville deposit), Bridgewater 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 American Mine (Alpha Copper Mine; Bridgewater Mine; Somerville Mine; Somerville deposit), Bridgewater Township, Somerset County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:79112
Long-form Identifier:1:3:79112:0
GUID (UUID V4):0
Nearest other occurrences of Pyrite
3.9km (2.4 miles) ⓘPluckemin Copper Mine, Pluckemin, Bedminster Township, Somerset County, New Jersey, USA
3.9km (2.4 miles) ⓘPluckemin, Bedminster Township, Somerset County, New Jersey, USA
9.8km (6.1 miles) ⓘMillington Quarry, Bernards Township, Somerset County, New Jersey, USA
14.6km (9.1 miles) ⓘWilson's Quarry (Wilson Stone Co. Quarry), Watchung, Somerset County, New Jersey, USA
15.0km (9.3 miles) ⓘBartle Mine, Pottersville, Tewksbury Township, Hunterdon County, New Jersey, USA
15.3km (9.5 miles) ⓘNeshanic, Hillsborough Township, Somerset County, New Jersey, USA
16.0km (10.0 miles) ⓘHacklebarney Mine, Hacklebarney, Chester Township, Morris County, New Jersey, USA
17.2km (10.7 miles) ⓘLangdon Mine, Hacklebarney, Chester Township, Morris County, New Jersey, USA
18.4km (11.5 miles) ⓘFanwood Quarry (Weldon Quarry), Watchung, Somerset County, New Jersey, USA
19.1km (11.9 miles) ⓘGulick Farm Mines, Chester Township, Morris 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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