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Natrolite from
Tilly Foster Iron Mine, Brewster, Town of Southeast, Putnam Co., New York, USA

Locality type:Mine
Formula:Na2Al2Si3O10 · 2H2O
Comments:Slender, prismatic crystals and white radiating masses on seams in gneiss
Habit:acicular, radiating masses
Abundance at site:Rare
Validity:Believed Valid
References:Jensen (1978) Minerals of New York State, 42-43
(Januzzi, 1966, 1989) (Trainer, 1942).
Mineral Data:Click here to view Natrolite data
Locality Data:Click here to view Tilly Foster Iron Mine, Brewster, Town of Southeast, Putnam Co., New York, USA
Nearest other occurrences of Natrolite
24.2km (15.0 miles) Sky Ridge railroad cut, Hawleyville, Newtown, Fairfield Co., Connecticut, USA
26.1km (16.2 miles) State Route 57 zeolite occurrence (Georgetown locality; Connerie's store), Redding (Reading), Fairfield Co., Connecticut, USA
29.4km (18.3 miles) Anthony's Nose, Cortlandt Township, Westchester Co., New York, USA
29.9km (18.6 miles) Interstate 84 road cuts (Route 6A bypass), Newtown, Fairfield Co., Connecticut, USA
37.7km (23.4 miles) O & G Southbury Quarry (Silliman Quarry; O & G No. 2 Quarry), Southbury, New Haven Co., Connecticut, USA
38.4km (23.9 miles) Rockland Lake Landing, Rockland Lake, Haverstraw, Rockland Co., New York, USA
40.3km (25.0 miles) O & G Woodbury Quarry (Orenaug Quarry; O & G No. 1 Quarry), Orenaug Hills, Woodbury, Litchfield Co., Connecticut, USA
45.5km (28.3 miles) Wesley Hills, Town of Ramapo, Rockland Co., New York, USA
50.4km (31.3 miles) Tappan, Orangetown, Rockland Co., New York, USA
56.5km (35.1 miles) Woodcliff Park (Woodcliff), Bergen Co., New Jersey, USA
Mineral and/or Locality  
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