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

Erratic type:
Classification
Species:Opal
Comments:see Opal-AN variety.
Confirmation
Validity:Confirmed
Confirmation Methods:Visual (Fluorescence)
References
References:
Jones, Robert W. Jr., (1960), Luminescent Minerals of Connecticut, A Guide to Their Properties and Locations. Fluorescent House. Branford, Connecticut.
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Case Quarries, Portland, Middlesex Co., Connecticut, USA
Nearest other occurrences of Opal
1.3km (0.8 miles) A Gotta-Walden Prospect, 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
1.9km (1.2 miles) D Simpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
2.1km (1.3 miles) E Hollister prospects (Hollister 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
2.8km (1.8 miles) H Howe #4 Quarry and Eureka Quarries, South Glastonbury, Glastonbury, Hartford 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
4.5km (2.8 miles) J Hale-Walker prospects, Collins Hill, Portland, Middlesex Co., Connecticut, USA
4.8km (3.0 miles) K Nathan Hall Quarry (Clark Hill Quarry), East Hampton (Chatham), Middlesex Co., Connecticut, USA
5.8km (3.6 miles) L Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex Co., Connecticut, USA
7.2km (4.5 miles) M Rocky Hill Quarry, Rocky Hill, Hartford Co., Connecticut, USA
7.8km (4.8 miles) N Riverside Quarry (Western Quarry), White Rock District (White Rocks District), Middletown, Middlesex Co., Connecticut, USA
8.1km (5.0 miles) O White Rocks Quarry (Consolidated Quarry), White Rock District (White Rocks District), Middletown, Middlesex Co., Connecticut, USA
11.5km (7.1 miles) P Worth and Selden Quarries (Victoria Quarry), East Hampton (Chatham), Middlesex Co., Connecticut, USA
12.6km (7.8 miles) Q 2368-2384 Berlin Turnpike (Former Hartford Drive-In), Newington, Hartford 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
14.2km (8.8 miles) T Newington, Hartford Co., Connecticut, USA
14.5km (9.0 miles) U Haddam Volunteer Fire Station, Higganum, Haddam, Middlesex Co., Connecticut, USA
15.3km (9.5 miles) V Forest Ridge Road, Higganum, Haddam, Middlesex Co., Connecticut, USA
15.4km (9.6 miles) W John Salak Quarry, Haddam, Middlesex Co., Connecticut, USA
18.0km (11.2 miles) X Jail Hill Road locality (Jail Hill Quarry), Haddam, Middlesex Co., Connecticut, USA
18.1km (11.2 miles) Y Durham, Middlesex Co., Connecticut, USA
20.0km (12.4 miles) Z Hewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex Co., Connecticut, USA
39.1km (24.3 miles) 0 Blue Stone Quarry, Waterbury, New Haven Co., Connecticut, USA
41.0km (25.5 miles) 1 Lead Mine Brook, Harwinton, Litchfield Co., Connecticut, USA
41.4km (25.7 miles) 2 Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield Co., Connecticut, USA
46.8km (29.1 miles) 3 State Route 8 and State Route 118 interchange, Harwinton, Litchfield Co., Connecticut, USA
46.9km (29.2 miles) 4 Torringford, Torrington, Litchfield Co., Connecticut, USA
52.9km (32.9 miles) 5 Nonnewaug River Industrial Park, Woodbury, Litchfield Co., Connecticut, USA
53.3km (33.1 miles) 6 Curtis Quarry (Southford Quarry; Southford pegmatite; Southbury rose quartz quarry; Bridgeport Woodfinishing Co. Quarry; Hulls Hill), Southford, Southbury, New Haven Co., Connecticut, USA
55.3km (34.4 miles) 7 Southbury, New Haven Co., Connecticut, USA
63.5km (39.5 miles) 8 Roxbury Iron Mine (Shepaug Iron Company Mine; Shepaug Spathic Iron and Steel Company Mine), Mine Hill (Ore Hill), Roxbury, Litchfield Co., Connecticut, USA
65.6km (40.8 miles) 9 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
Mineral and/or Locality  
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