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


Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:AD3G6(T6O18)(BO3)3X3Z
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tourmaline 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:559668
Long-form Identifier:1:3:559668:3
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
1.2km (0.8 miles) ⓘHarlem Ship Canal, Manhattan (New York County), New York City, New York, USA
1.9km (1.2 miles) ⓘ218th Street & Broadway, Manhattan (New York County), New York City, New York, USA
2.4km (1.5 miles) ⓘ165th Street & Riverside Drive, Manhattan (New York County), New York City, New York, USA
7.1km (4.4 miles) ⓘNew York - Susquehanna & Western Railroad tunnel, Edgewater, Bergen County, New Jersey, USA
8.2km (5.1 miles) ⓘ93rd Street & Riverside Drive, Manhattan (New York County), New York City, New York, USA
8.5km (5.3 miles) ⓘYonkers, Westchester County, New York, USA
8.9km (5.5 miles) ⓘEastchester, The Bronx (Bronx County), New York City, New York, USA
12.4km (7.7 miles) ⓘ164th Street & Broadway, Manhattan (New York County), New York City, New York, USA
21.4km (13.3 miles) ⓘHarrison, Westchester County, New York, USA
24.6km (15.3 miles) ⓘRye, Westchester County, New York, 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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