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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Thomsonite-Ca from
Delaware - Lackawanna & Western Railroad tunnels, Bergen Hill, Jersey City, Hudson County, New Jersey, USA


Locality type:Tunnel
Classification
Species:Thomsonite-Ca
Formula:NaCa2[Al5Si5O20] · 6H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Thomsonite-Ca data
Locality Data:Click here to view Delaware - Lackawanna & Western Railroad tunnels, Bergen Hill, Jersey City, Hudson County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:73142
Long-form Identifier:1:3:73142:9
GUID (UUID V4):0
Nearest other occurrences of Thomsonite-Ca
19.1km (11.9 miles) ⓘFrancisco Brothers Quarry, Great Notch, Little Falls Township, Passaic County, New Jersey, USA
21.1km (13.1 miles) ⓘUpper New Street Quarry, Paterson, Passaic County, New Jersey, USA
21.2km (13.1 miles) ⓘLower New Street Quarry, Paterson, Passaic County, New Jersey, USA
24.3km (15.1 miles) ⓘProspect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
40.5km (25.2 miles) ⓘMillington Quarry, Bernards Township, Somerset County, New Jersey, USA
59.5km (36.9 miles) ⓘPassaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA
60.7km (37.7 miles) ⓘFranklin Mine, Franklin, Sussex County, New Jersey, USA
61.2km (38.0 miles) ⓘMill site dump, Franklin Mine, Franklin, Sussex County, New Jersey, USA
62.3km (38.7 miles) ⓘPeekskill, Westchester County, New York, USA
82.7km (51.4 miles) ⓘTilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
References
Mins. of NYC & Its Environs, NY Min. Club, Vol. 3 (1931), Manchester.
 
and/or  
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