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Hornblende from
Case Quarries, Portland, Middlesex Co., Connecticut, USA

Species:'Hornblende' (not an IMA approved species)
Comments:Rock-forming component of the host Glastonbury Gneiss.
Habit:subhedral elongated prisms
Quality for species:Rock forming mineral/non-crystalline/little interest for collectors.(##)
Abundance at site:Common
Confirmation Methods:Visually Identified
Schooner, Richard. (1958), The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough). Published by Richard Schooner; Ralph Lieser of Pappy’s Beryl Shop, East Hampton; and Howard Pate of Fluorescent House, Branford, Connecticut.
Mineral Data:Click here to view Hornblende data
Locality Data:Click here to view Case Quarries, Portland, Middlesex Co., Connecticut, USA
Nearest other occurrences of Hornblende
1.5km (1.0 miles) A Walden Gem Quarry, Portland, Middlesex Co., Connecticut, USA
2.7km (1.7 miles) B Pelton's Quarry, Portland, Middlesex Co., Connecticut, USA
4.5km (2.8 miles) C Hale-Walker prospects, Collins Hill, Portland, Middlesex Co., Connecticut, USA
5.8km (3.6 miles) D Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex Co., Connecticut, USA
11.5km (7.1 miles) E Worth and Selden Quarries (Victoria Quarry), East Hampton (Chatham), Middlesex Co., Connecticut, USA
33.2km (20.6 miles) F East Main Street construction site, Waterbury, New Haven Co., Connecticut, USA
36.4km (22.6 miles) G Mansfield Hollow Dam, Windham, Windham Co., Connecticut, USA
41.4km (25.7 miles) H Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield Co., Connecticut, USA
42.9km (26.6 miles) I Hoadley Point Quarries, Branford, New Haven Co., Connecticut, USA
47.2km (29.3 miles) J Barrett Brothers Quarry (D and J Quarry), Beacon Falls, New Haven Co., Connecticut, USA
57.3km (35.6 miles) K Westfield, Hampden Co., Massachusetts, USA
58.2km (36.2 miles) L Mount Prospect complex (Prospect Hill complex; Prospect Mountain complex), Litchfield, Litchfield Co., Connecticut, USA
60.7km (37.7 miles) M Sturbridge Graphite Mine (Tantiusques Mine; Winthrop Lead Mine), Sturbridge, Worcester Co., Massachusetts, USA
65.6km (40.8 miles) N 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
66.3km (41.2 miles) O State Route 111 road cuts, Long Hill, Trumbull, Fairfield Co., Connecticut, USA
70.6km (43.8 miles) P U. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield Co., Connecticut, USA
72.7km (45.2 miles) Q Agstone Company Limestone Quarry, Danbury, Fairfield Co., Connecticut, USA
73.9km (45.9 miles) R Belchertown, Hampshire Co., Massachusetts, USA
76.1km (47.3 miles) S Otis, Berkshire Co., Massachusetts, USA
76.7km (47.7 miles) T North Street mall, Danbury, Fairfield Co., Connecticut, USA
77.2km (48.0 miles) U Danbury, Fairfield Co., Connecticut, USA
81.4km (50.6 miles) V Pelham asbestos mine, Pelham, Hampshire Co., Massachusetts, USA
81.8km (50.8 miles) W Weston, Fairfield Co., Connecticut, USA
81.9km (50.9 miles) X Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA
82.1km (51.0 miles) Y Coventry, Kent Co., Rhode Island, USA
85.6km (53.2 miles) Z Ridgefield, Fairfield Co., Connecticut, USA
86.2km (53.6 miles) 0 Tyringham, Berkshire Co., Massachusetts, USA
88.9km (55.3 miles) 1 Becket, Berkshire Co., Massachusetts, USA
90.4km (56.2 miles) 2 Interstate 84 road cuts, Brewster, Southeast Township, Putnam Co., New York, USA
92.1km (57.2 miles) 3 Tilly Foster Iron Mine, Brewster, Town of Southeast, Putnam Co., New York, USA
92.1km (57.3 miles) 4 Leverett, Franklin Co., Massachusetts, USA
93.3km (58.0 miles) 5 Uxbridge, Worcester Co., Massachusetts, USA
93.6km (58.1 miles) 6 Lee, Berkshire Co., Massachusetts, USA
94.9km (58.9 miles) 7 Centredale, North Providence, Providence Co., Rhode Island, USA
97.8km (60.8 miles) 8 Quabbin Aqueduct Shaft #6 locality, Rutland, Worcester Co., Massachusetts, USA
100.4km (62.4 miles) 9 Bedford, Westchester Co., New York, USA
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