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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Bornite from
Margerum Brothers Quarry, West Windsor Township, Mercer County, New Jersey, USA


Locality type:Quarry
Classification
Species:Bornite
Formula:Cu5FeS4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Bornite data
Locality Data:Click here to view Margerum Brothers Quarry, West Windsor Township, Mercer County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:80099
Long-form Identifier:1:3:80099:6
GUID (UUID V4):0
Nearest other occurrences of Bornite
10.2km (6.3 miles) ⓘGriggstown Mine (Franklin Mine), Griggstown, Franklin Township, Somerset County, New Jersey, USA
16.9km (10.5 miles) ⓘRaritan Mine, North Brunswick Township, Middlesex County, New Jersey, USA
26.6km (16.6 miles) ⓘFlemington Copper Mine, Flemington, Hunterdon County, New Jersey, USA
28.6km (17.8 miles) ⓘChimney Rock Gorge, Bridgewater Township, Somerset County, New Jersey, USA
28.9km (17.9 miles) ⓘChimney Rock Quarry, Bridgewater Township, Somerset County, New Jersey, USA
41.8km (26.0 miles) ⓘFanwood Quarry (Weldon Quarry), Watchung, Somerset County, New Jersey, USA
45.4km (28.2 miles) ⓘDoan's Lead Mine (New Britain Mine), New Galena, New Britain Township, Bucks County, Pennsylvania, USA
49.3km (30.6 miles) ⓘHoudaille Quarry (Summit Quarry; Commonwealth Quarry), Springfield, Springfield Township, Union County, New Jersey, USA
51.7km (32.2 miles) ⓘPeter's Quarry, Frankford, Philadelphia, Philadelphia County, Pennsylvania, USA
51.8km (32.2 miles) ⓘBarber's Quarry, Frankford, Philadelphia, Philadelphia County, Pennsylvania, 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.88
 
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