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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Stilbite Subgroup from
Fort George (192nd Street & Audubon Avenue), Washington Heights, Manhattan (New York County), New York City, New York, USA


Classification
Species:'Stilbite Subgroup' (not an IMA approved species)
Formula:M6-7[Al8-9Si27-28O72] · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Stilbite Subgroup data
Locality Data:Click here to view Fort George (192nd Street & Audubon Avenue), Washington Heights, Manhattan (New York County), New York City, New York, USA
Data Identifiers
Mindat Occurrence Record ID:559667
Long-form Identifier:1:3:559667:6
GUID (UUID V4):0
Nearest other occurrences of Stilbite Subgroup
3.8km (2.4 miles) ⓘInterstate 95 and George Washington Bridge Lower Level roadcut, Fort Lee, Bergen County, New Jersey, USA
3.9km (2.4 miles) ⓘSouthern Boulevard, The Bronx (Bronx County), New York City, New York, USA
4.5km (2.8 miles) ⓘPrentice Quarry, Englewood, Bergen County, New Jersey, USA
7.1km (4.4 miles) ⓘNew York - Susquehanna & Western Railroad tunnel, Edgewater, Bergen County, New Jersey, USA
8.5km (5.3 miles) ⓘYonkers, Westchester County, New York, USA
8.6km (5.4 miles) ⓘBulls Ferry Road, North Bergen, North Bergen Township, Hudson County, New Jersey, USA
10.8km (6.7 miles) ⓘRoosevelt Island (Welfare Island), Manhattan (New York County), New York City, New York, USA
12.3km (7.6 miles) ⓘ45th Street & 2nd Avenue, Manhattan (New York County), New York City, New York, USA
12.6km (7.8 miles) ⓘNew York - West Shore & Buffalo RR tunnel, Weehawken, Bergen Hill, Hudson County, New Jersey, USA
12.6km (7.8 miles) ⓘShady Side, Weehawken, Bergen Hill, Hudson County, New Jersey, USA
References
Russell, DE "The Minerals of Fort George, Manhattan" http://www.mindat.org/article.php/477/The+Minerals+of+Fort+George%2C+Manhattan
 
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