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

Locality type:Quarry
Classification
Species:Uraninite
Formula:UO2
Comments:Typically as small (<0.5 cm) grains best found using gamma-ray detectors.
Habit:subhedral
Colour:black
Quality for species:Poor for species, only of interest for locality collectors. (#)
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
References
References: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.
Associated Minerals Based on Photo Data:
Uranophane1 photo of Uraninite associated with Uranophane at this locality.
Data
Mineral Data:Click here to view Uraninite data
Locality Data:Click here to view Case Quarries, Portland, Middlesex Co., Connecticut, USA
Nearest other occurrences of Uraninite
1.4km (0.9 miles) A Bordonaro Quarry, Portland, Middlesex Co., Connecticut, USA
1.5km (1.0 miles) B Walden Gem Quarry, Portland, Middlesex Co., Connecticut, USA
1.5km (1.0 miles) C Hale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex Co., Connecticut, USA
1.8km (1.1 miles) D Andrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex Co., Connecticut, USA
1.9km (1.2 miles) E Simpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
2.3km (1.4 miles) F Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
2.7km (1.7 miles) G Pelton's Quarry, Portland, Middlesex Co., Connecticut, USA
3.7km (2.3 miles) H Schoonmaker Mine (Cramer Mine), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
3.8km (2.4 miles) I Strickland Quarry (Eureka Quarry), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
4.6km (2.9 miles) J State Forest Quarry No. 1 (State Forest #1 Quarry; Clark Hill Quarry), East Hampton (Chatham), Middlesex Co., Connecticut, USA
4.8km (3.0 miles) K Nathan Hall Quarry (Clark Hill Quarry), East Hampton (Chatham), Middlesex Co., Connecticut, USA
7.8km (4.8 miles) L Riverside Quarry (Western Quarry), White Rock District (White Rocks District), Middletown, Middlesex Co., Connecticut, USA
8.1km (5.0 miles) M White Rocks Quarry (Consolidated Quarry), White Rock District (White Rocks District), Middletown, Middlesex Co., Connecticut, USA
8.8km (5.5 miles) N Vespa stone quarry, East Hampton (Chatham), Middlesex Co., Connecticut, USA
9.2km (5.7 miles) O Middletown, Middlesex Co., Connecticut, USA
10.6km (6.6 miles) P Tollgate Quarry (Tollgate Mine; Bidwell Quarry; China-stone Quarry), Middletown, Middlesex Co., Connecticut, USA
11.5km (7.1 miles) Q Worth and Selden Quarries (Victoria Quarry), East Hampton (Chatham), Middlesex Co., Connecticut, USA
13.7km (8.5 miles) R Slocum prospect, East Hampton (Chatham), Middlesex Co., Connecticut, USA
13.9km (8.6 miles) S Rock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
15.4km (9.6 miles) T John Salak Quarry, Haddam, Middlesex Co., Connecticut, USA
18.0km (11.2 miles) U Jail Hill Road locality (Jail Hill Quarry), Haddam, Middlesex Co., Connecticut, USA
18.1km (11.2 miles) V Durham, Middlesex Co., Connecticut, USA
19.3km (12.0 miles) W Beaver Meadow Road - State Route 9 Interchange, Haddam, Middlesex Co., Connecticut, USA
19.3km (12.0 miles) X Civilian Conservation Corps Quarry (CCC Quarry; Smith Quarry; Turkey Hill quarry lot), Haddam, Middlesex Co., Connecticut, USA
19.4km (12.1 miles) Y Civilian Conservation Corps prospect (CCC prospect; Cook columbite prospect), Haddam, Middlesex Co., Connecticut, USA
20.0km (12.4 miles) Z Hewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex Co., Connecticut, USA
39.9km (24.8 miles) 0 Newgate Copper Mine (Old Newgate Prison), Simsbury Mines, East Granby, Hartford Co., Connecticut, USA
52.2km (32.4 miles) 1 Woodbury pegmatite quarry, Woodbury, Litchfield Co., Connecticut, USA
65.6km (40.8 miles) 2 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
68.5km (42.6 miles) 3 Blandford mica mines, Blandford, Hampden Co., Massachusetts, USA
69.4km (43.1 miles) 4 Redstone Granite Quarry (Cherenzia Quarry), Westerly, Washington Co., Rhode Island, USA
70.9km (44.1 miles) 5 Biermann Quarries (Bethel quarries) and tourmaline ledge, Bethel, Fairfield Co., Connecticut, USA
71.1km (44.2 miles) 6 New England Mining Company Quarry (Roebling Mine; Hewitt's Mine), Upper Merryall, New Milford, Litchfield Co., Connecticut, USA
81.9km (50.9 miles) 7 Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA
85.6km (53.2 miles) 8 Ridgefield, Fairfield Co., Connecticut, USA
86.4km (53.7 miles) 9 Casey Quarry (Ridgefield pegmatite), Ridgefield, Fairfield Co., Connecticut, USA
Mineral and/or Locality  
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