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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Chalcocite from
Voorhees, Franklin Township, Somerset County, New Jersey, USA


Locality type:Village
Classification
Species:Chalcocite
Formula:Cu2S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Voorhees, Franklin Township, Somerset County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:80241
Long-form Identifier:1:3:80241:7
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
11.2km (7.0 miles) ⓘGreen Valley, Middlesex County, New Jersey, USA
12.3km (7.7 miles) ⓘGriggstown Mine (Franklin Mine), Griggstown, Franklin Township, Somerset County, New Jersey, USA
13.2km (8.2 miles) ⓘChimney Rock Quarry, Bridgewater Township, Somerset County, New Jersey, USA
14.6km (9.1 miles) ⓘFields' Copper Mine (Field Mine), Warrenville, Warren Township, Somerset County, New Jersey, USA
17.1km (10.6 miles) ⓘWilson's Quarry (Wilson Stone Co. Quarry), Watchung, Somerset County, New Jersey, USA
18.5km (11.5 miles) ⓘAmerican Mine (Alpha Copper Mine; Bridgewater Mine; Somerville Mine; Somerville deposit), Bridgewater Township, Somerset County, New Jersey, USA
19.8km (12.3 miles) ⓘNeshanic, Hillsborough Township, Somerset County, New Jersey, USA
21.6km (13.4 miles) ⓘHoffman Mine, Sunset Lake, Bridgewater Township, Somerset County, New Jersey, USA
21.8km (13.6 miles) ⓘMargerum Brothers Quarry, West Windsor Township, Mercer County, New Jersey, USA
22.3km (13.9 miles) ⓘPluckemin Copper Mine, Pluckemin, Bedminster Township, Somerset County, New Jersey, 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.96
 
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