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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Stevensite from
Francisco Brothers Quarry, Great Notch, Little Falls Township, Passaic County, New Jersey, USA


Locality type:Quarry
Classification
Species:Stevensite
Formula:(Ca,Na)xMg3-x(Si4O10)(OH)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Pectolite1
Apophyllite Group1
Stilbite Subgroup1
Data
Mineral Data:Click here to view Stevensite data
Locality Data:Click here to view Francisco Brothers Quarry, Great Notch, Little Falls Township, Passaic County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:73186
Long-form Identifier:1:3:73186:3
GUID (UUID V4):0
Nearest other occurrences of Stevensite
4.1km (2.5 miles) ⓘLower New Street Quarry, Paterson, Passaic County, New Jersey, USA
4.2km (2.6 miles) ⓘUpper New Street Quarry, Paterson, Passaic County, New Jersey, USA
6.1km (3.8 miles) ⓘInterstate 80 roadcut, Paterson, Passaic County, New Jersey, USA
6.5km (4.0 miles) ⓘF.J. Marley Quarry, Verona, Essex County, New Jersey, USA
8.2km (5.1 miles) ⓘProspect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
16.2km (10.1 miles) ⓘLaurel Hill, Secaucus, Hudson County, New Jersey, USA
16.4km (10.2 miles) ⓘHartshorn Quarry, Short Hills, Millburn, Essex County, New Jersey, USA
18.9km (11.8 miles) ⓘStewart Hartshorn Quarry (Hartshorn Quarry), Millburn, Millburn, Essex County, New Jersey, USA
19.5km (12.1 miles) ⓘWoodcliff, North Bergen, Hudson County, New Jersey, USA
20.1km (12.5 miles) ⓘInterstate 95 and George Washington Bridge Lower Level roadcut, Fort Lee, Bergen County, New Jersey, USA
References
Mins. of NYC & Its Environs, NY Min. Club. (1931), Manchester
NJ Geol. Survey Bull. #64 (1960), Mason, B.
 
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