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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Marcasite from
Edgar's pit, Sayreville, Middlesex County, New Jersey, USA


Locality type:Pit
Classification
Species:Marcasite
Formula:FeS2
Comments:Occurrence includes "spear-headed" crystals, the first such crystals discovered in the USA.
Habit:spear-headed.
Colour:Brassy
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Marcasite data
Locality Data:Click here to view Edgar's pit, Sayreville, Middlesex County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:71869
Long-form Identifier:1:3:71869:5
GUID (UUID V4):0
Nearest other occurrences of Marcasite
0.0km (0.0 miles) Quigley pit, Sayreville, Middlesex County, New Jersey, USA
5.6km (3.5 miles) Van Horne's pit, New Brunswick, Middlesex County, New Jersey, USA
11.3km (7.0 miles) Cliffwood Beach, Aberdeen Township, Monmouth County, New Jersey, USA
35.6km (22.1 miles) Squankum, Howell Township, Monmouth County, New Jersey, USA
49.5km (30.7 miles) Trap Rock Industries Moores Station Quarry, Moore, Hopewell Township, Mercer County, New Jersey, USA
54.9km (34.1 miles) Interstate 95 and George Washington Bridge Lower Level roadcut, Fort Lee, Bergen County, New Jersey, USA
57.0km (35.4 miles) 172nd Street & Grand Concourse, The Bronx (Bronx County), New York City, New York, USA
58.4km (36.3 miles) Inwood Valley (Inwood), Manhattan (New York County), New York City, New York, USA
58.9km (36.6 miles) Harlem Ship Canal, Manhattan (New York County), New York City, New York, USA
58.9km (36.6 miles) 207th Street & Broadway, Manhattan (New York County), New York City, New York, USA
References
 
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