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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Opal-AN from
Lowrance Mine, Netcong, Morris County, New Jersey, USA


Locality type:Mine
Classification
Species:Opal var: Opal-AN
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal-AN data
Locality Data:Click here to view Lowrance Mine, Netcong, Morris County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:72729
Long-form Identifier:1:3:72729:5
GUID (UUID V4):0
Nearest other occurrences of Opal-AN
5.6km (3.5 miles) ⓘBEMCO prospect (Charlotte Mine), Cranberry Lake, Byram Township, Sussex County, New Jersey, USA
40.3km (25.1 miles) ⓘF.J. Marley Quarry, Verona, Essex County, New Jersey, USA
43.3km (26.9 miles) ⓘUpper New Street Quarry, Paterson, Passaic County, New Jersey, USA
56.8km (35.3 miles) ⓘPennsylvania Railroad cut, Mt Pleasant, Bergen Hill, Jersey City, Hudson County, New Jersey, USA
59.4km (36.9 miles) ⓘNew York - West Shore & Buffalo RR tunnel, Weehawken, Bergen Hill, Hudson County, New Jersey, USA
63.2km (39.2 miles) ⓘMargerum Brothers Quarry, West Windsor Township, Mercer County, New Jersey, USA
63.3km (39.3 miles) ⓘ106th Street & Central Park West, Manhattan (New York County), New York City, New York, USA
77.6km (48.2 miles) ⓘMcCoy's Gold Mine, Camp Smith, Peekskill, Westchester County, New York, USA
78.6km (48.8 miles) ⓘPhilips Mine (Philips Pyrite Mine; Anthony's Nose Pyrrhotite Mine), Town of Philipstown, Putnam County, New York, USA
80.0km (49.7 miles) ⓘWhite Plains, Westchester County, New York, USA
References
NJ State Geol. Ann. Rpt. (1856): 175.
 
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