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
Canada Mine, Canada Mines Group (Canada Iron Mines), Town of Putnam Valley, Putnam County, New York, USA


Locality type:Mine
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 Canada Mine, Canada Mines Group (Canada Iron Mines), Town of Putnam Valley, Putnam County, New York, USA
Data Identifiers
Mindat Occurrence Record ID:83086
Long-form Identifier:1:3:83086:3
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
7.8km (4.8 miles) ⓘMahopac Mines, Town of Carmel, Putnam County, New York, USA
9.3km (5.8 miles) ⓘWest Point, Orange County, New York, USA
15.3km (9.5 miles) ⓘPeekskill, Westchester County, New York, USA
17.3km (10.8 miles) ⓘTilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
19.1km (11.8 miles) ⓘCrugers Emery Mine, Montrose, Cortlandt Township, Westchester County, New York, USA
29.2km (18.2 miles) ⓘBedford, Westchester County, New York, USA
30.9km (19.2 miles) ⓘCasey Quarry (Ridgefield pegmatite), Ridgefield, Fairfield County, Connecticut, USA
32.9km (20.4 miles) ⓘNorth Street mall, Danbury, Fairfield County, Connecticut, USA
33.1km (20.6 miles) ⓘDanburite type locality, Danbury, Fairfield County, Connecticut, USA
33.2km (20.6 miles) ⓘHobby Hill Quarry, North Castle, Westchester County, New York, USA
References
Clarke, John M. (1921, September) The Magnetite Iron Deposits of Southeastern New York. New York State Museum Bulletin Vol. 249-250. The University of the State of New Yorkp.111
 
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