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

Classification
Species:Diopside
Comments:Reported as crystals in pyrrhotite, dolomite, calcite, and gneiss; also in green granular and crystalline masses
Also found as stout pink crystals on serpentine and as micro lath-like crystals, transparent, and embedded in a matrix of white calcite.
Colour:green, pink
Confirmation
Validity:Believed Valid
References
References:Jensen (1978) Minerals of New York State, pp.42-43
(Januzzi, 1966, 1989) (Trainer, 1938) (Nightingale 2001)
Associated Minerals Based on Photo Data:
Chondrodite1 photo of Diopside associated with Chondrodite at this locality.
Data
Mineral Data:Click here to view Diopside data
Locality Data:Click here to view Tilly Foster Iron Mine, Brewster, Town of Southeast, Putnam Co., New York, USA
Nearest other occurrences of Diopside
4.6km (2.9 miles) A Interstate 84 road cuts, Brewster, Southeast Township, Putnam Co., New York, USA
16.2km (10.1 miles) B North Street mall, Danbury, Fairfield Co., Connecticut, USA
19.8km (12.3 miles) C Agstone Company Limestone Quarry, Danbury, Fairfield Co., Connecticut, USA
20.5km (12.8 miles) D West Redding grossular locality, Redding (Reading), Fairfield Co., Connecticut, USA
21.6km (13.4 miles) E U. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield Co., Connecticut, USA
21.6km (13.4 miles) F Hustis Quarry, Cold Spring, Town of Philipstown, Putnam Co., New York, USA
22.2km (13.8 miles) G Shaft 7, Delaware Aqueduct, Fishkill Township, Dutchess Co., New York, USA
25.0km (15.6 miles) H Cotton Rock, Cold Spring, Town of Philipstown, Putnam Co., New York, USA
25.7km (16.0 miles) I West Point, Orange Co., New York, USA
26.4km (16.4 miles) J Advance Stone Quarry, Boardman's Bridge, New Milford, Litchfield Co., Connecticut, USA
29.9km (18.6 miles) K Interstate 84 road cuts (Route 6A bypass), Newtown, Fairfield Co., Connecticut, USA
30.0km (18.6 miles) L Forest of Dean Mine, Fort Montgomery, Town of Highlands, Orange Co., New York, USA
33.3km (20.7 miles) M Ossining (Sing Sing), Westchester Co., New York, USA
33.7km (21.0 miles) N Pleasantville, Mount Pleasant, Westchester Co., New York, USA
36.1km (22.4 miles) O Weston meteorite (incl Easton; Trumbull; Fairfield), Weston, Fairfield Co., Connecticut, USA
37.6km (23.4 miles) P Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield Co., Connecticut, USA
38.0km (23.6 miles) Q Old Mine Park (Lane’s Mine of Trumbull; Lane's New Stratford mine; Hubbard Mine; Long Hill Mine; Old Tungsten Mine), Long Hill, Trumbull, Fairfield Co., Connecticut, USA
42.2km (26.2 miles) R Greenwood mine (Patterson mine), Town of Tuxedo, Orange Co., New York, USA
43.0km (26.7 miles) S Surebridge Mine (Sure-Bridge Mine), Town of Tuxedo, Orange Co., New York, USA
43.9km (27.3 miles) T Hogencamp Mine, Town of Tuxedo, Orange Co., New York, USA
44.9km (27.9 miles) U Greenwood Furnace, Arden (Greenwood), Orange Co., New York, USA
46.9km (29.2 miles) V O'Neil Mine (Nail Mine), Lake Mombasha, Town of Monroe, Orange Co., New York, USA
53.0km (33.0 miles) W Waterbury, New Haven Co., Connecticut, USA
54.4km (33.8 miles) X Reynolds Bridge, Thomaston, Litchfield Co., Connecticut, USA
56.0km (34.8 miles) Y Red-Back Mine (Redback mine), Tuxedo Lake, Town of Tuxedo, Orange Co., New York, USA
56.5km (35.1 miles) Z Lambert Road serpentinite, Orange, New Haven Co., Connecticut, USA
57.6km (35.8 miles) 0 Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield Co., Connecticut, USA
59.7km (37.1 miles) 1 Boston mine, Orange Co., New York, USA
63.0km (39.1 miles) 2 Jerome Park Reservoir, The Bronx (Bronx Co.), New York City, New York, USA
63.6km (39.5 miles) 3 Kingsbridge Road quarries, Manhattan (New York Co.), New York City, New York, USA
64.1km (39.8 miles) 4 Mountain Top Trucking quarry, Torrington, Litchfield Co., Connecticut, USA
65.4km (40.6 miles) 5 Harlem Ship Canal, Manhattan (New York Co.), New York City, New York, USA
65.5km (40.7 miles) 6 Inwood Valley (Inwood), Manhattan Island, Manhattan (New York Co.), New York City, New York, USA
66.1km (41.0 miles) 7 Mount Adam, Pine Island, Town of Warwick, Orange Co., New York, USA
67.6km (42.0 miles) 8 Rhein property, Amity, Town of Warwick, Orange Co., New York, USA
67.7km (42.0 miles) 9 Redwing Quarry (Century Aggregates Inc. Sand Road Mine; American Lime Company; Northeast Lime Compay; U. S. Gypsum Company; Falls Village Limestone Company), Falls Village, Canaan, Litchfield Co., Connecticut, USA
Mineral and/or Locality  
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