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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Chalcopyrite from
Menlo Park Copper Mine (Edison Mine), Menlo Park neighborhood, Edison, Middlesex County, New Jersey, USA


Locality type:Mine
Classification
Species:Chalcopyrite
Formula:CuFeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view Menlo Park Copper Mine (Edison Mine), Menlo Park neighborhood, Edison, Middlesex County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:72787
Long-form Identifier:1:3:72787:9
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
11.9km (7.4 miles) ⓘWilson's Quarry (Wilson Stone Co. Quarry), Watchung, Somerset County, New Jersey, USA
12.1km (7.5 miles) ⓘFanwood Quarry (Weldon Quarry), Watchung, Somerset County, New Jersey, USA
13.4km (8.3 miles) ⓘFeltville Copper mine, Glenside Park (Feltville), Watchung Reservation, Union County, New Jersey, USA
15.8km (9.8 miles) ⓘHoudaille Quarry (Summit Quarry; Commonwealth Quarry), Springfield, Springfield Township, Union County, New Jersey, USA
19.3km (12.0 miles) ⓘChimney Rock Quarry, Bridgewater Township, Somerset County, New Jersey, USA
20.6km (12.8 miles) ⓘHartshorn Quarry, Short Hills, Millburn, Essex County, New Jersey, USA
21.0km (13.1 miles) ⓘMillington Quarry, Bernards Township, Somerset County, New Jersey, USA
24.2km (15.0 miles) ⓘAmerican Mine (Alpha Copper Mine; Bridgewater Mine; Somerville Mine; Somerville deposit), Bridgewater Township, Somerset County, New Jersey, USA
26.4km (16.4 miles) ⓘRiker Hill, Livingston, Livingston, Essex County, New Jersey, USA
27.0km (16.8 miles) ⓘPluckemin, Bedminster Township, Somerset County, New Jersey, USA
References
NJ State Geol. Ann. Rpt. (1906):154.
Woodward, Herbert P. (1944) Copper Mines and Mining in New Jersey. Bulletin 57. New Jersey Geological Survey
 
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