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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Native Copper from
Hoffman Mine, Sunset Lake, Bridgewater Township, Somerset County, New Jersey, USA


Locality type:Mine
Classification
Species:Native Copper
Formula:Cu
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Native Copper data
Locality Data:Click here to view Hoffman Mine, Sunset Lake, Bridgewater Township, Somerset County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:72111
Long-form Identifier:1:3:72111:2
GUID (UUID V4):0
Nearest other occurrences of Native Copper
0.9km (0.6 miles) ⓘPluckemin Copper Mine, Pluckemin, Bedminster Township, Somerset County, New Jersey, USA
0.9km (0.6 miles) ⓘPluckemin, Bedminster Township, Somerset County, New Jersey, USA
3.3km (2.0 miles) ⓘAmerican Mine (Alpha Copper Mine; Bridgewater Mine; Somerville Mine; Somerville deposit), Bridgewater Township, Somerset County, New Jersey, USA
8.4km (5.2 miles) ⓘChimney Rock Quarry, Bridgewater Township, Somerset County, New Jersey, USA
8.9km (5.5 miles) ⓘWashington Mine, Bridgewater Township, Somerset County, New Jersey, USA
23.0km (14.3 miles) ⓘSomerset Street basement excavation, New Brunswick, Middlesex County, New Jersey, USA
23.3km (14.5 miles) ⓘNew Brunswick Mine (French Mine), New Brunswick, Middlesex County, New Jersey, USA
25.1km (15.6 miles) ⓘFlemington Copper Mine, Flemington, Hunterdon County, New Jersey, USA
25.2km (15.7 miles) ⓘGriggstown Mine (Franklin Mine), Griggstown, Franklin Township, Somerset County, New Jersey, USA
25.7km (16.0 miles) ⓘHoudaille Quarry (Summit Quarry; Commonwealth Quarry), Springfield, Springfield Township, Union County, New Jersey, USA
References
NJ State Geol. Ann. Rpt. (1906):150-151.
 
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