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Spinel from
North Street mall, Danbury, Fairfield County, Connecticut, USA

Classification
Species:Spinel
Formula:MgAl2O4
Comments:"It occurs here as greenish-black subhedral to euhedral crystals in limestone associated with chondrodite and perhaps what may be forsterite. The spinel ranges in size from tiny grain-like crystals to those that on occasion exceed the size of a pea." Januzzi (1976).
Habit:subhedral octahedral to euhedral
Colour:greenish-black, blue-gray
Quality for species:Poor for species, only of interest for locality collectors. (#)
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
References
References:Rocks & Minerals (1995) 70:396-409; Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 192-201.
Data
Mineral Data:Click here to view Spinel data
Locality Data:Click here to view North Street mall, Danbury, Fairfield County, Connecticut, USA
Nearest other occurrences of Spinel
15.5km (9.6 miles) Tilly Foster Iron Mine, Brewster, Town of Southeast, Putnam Co., New York, USA
24.7km (15.4 miles) Mahopac Mines (Hill Mine; German Flats Mine), Carmel, Putnam Co., New York, USA
39.8km (24.7 miles) Mount Prospect complex (Prospect Hill complex; Prospect Mountain complex), Litchfield, Litchfield Co., Connecticut, USA
41.1km (25.5 miles) Peekskill, Westchester Co., New York, USA
42.7km (26.5 miles) Crugers Emery Mine, Montrose, Cortlandt Township, Westchester Co., New York, USA
45.3km (28.1 miles) Forest of Dean Mine, Fort Montgomery, Town of Highlands, Orange Co., New York, USA
46.6km (29.0 miles) Bog Meadow Pond, Town of Highlands, Orange Co., New York, USA
46.9km (29.1 miles) Town of Highlands, Orange Co., New York, USA
51.6km (32.0 miles) Rye, Westchester Co., New York, USA
54.2km (33.7 miles) Stony Point (Woodbury), Rockland Co., New York, USA
 
Mineral and/or Locality  
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