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Opal from
Nathan Hall Quarry (Clark Hill Quarry), East Hampton (Chatham), Middlesex Co., Connecticut, USA

Classification
Species:Opal
Comments:inconspicuous unless illuminated by SW UV.
Habit:encrustations
Colour:colorless
Luminescent properties:green
Abundance at site:Very common
Confirmation
Validity:Believed Valid
References
References:Field collected by Harold Moritz.
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Nathan Hall Quarry (Clark Hill Quarry), East Hampton (Chatham), Middlesex Co., Connecticut, USA
Nearest other occurrences of Opal
2.0km (1.2 miles) A Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex Co., Connecticut, USA
3.2km (2.0 miles) B Pelton's Quarry, Portland, Middlesex Co., Connecticut, USA
4.1km (2.6 miles) C Hale-Walker prospects, Collins Hill, Portland, Middlesex Co., Connecticut, USA
4.3km (2.7 miles) D Strickland Quarry (Eureka Quarry), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
4.8km (3.0 miles) E Case Quarries, Portland, Middlesex Co., Connecticut, USA
5.3km (3.3 miles) F Gotta-Walden Prospect, Portland, Middlesex Co., Connecticut, USA
5.4km (3.4 miles) G Walden Gem Quarry, Portland, Middlesex Co., Connecticut, USA
6.2km (3.8 miles) H Hale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex Co., Connecticut, USA
6.6km (4.1 miles) I Riverside Quarry (Western Quarry), White Rock District (White Rocks District), Middletown, Middlesex Co., Connecticut, USA
6.7km (4.2 miles) J White Rocks Quarry (Consolidated Quarry), White Rock District (White Rocks District), Middletown, Middlesex Co., Connecticut, USA
6.7km (4.2 miles) K Simpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
6.8km (4.2 miles) L Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
7.1km (4.4 miles) M Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
7.2km (4.5 miles) N Worth and Selden Quarries (Victoria Quarry), East Hampton (Chatham), Middlesex Co., Connecticut, USA
7.6km (4.7 miles) O Howe #4 Quarry and Eureka Quarries, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
8.9km (5.6 miles) P Slocum prospect, East Hampton (Chatham), Middlesex Co., Connecticut, USA
9.7km (6.0 miles) Q Rock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
10.8km (6.7 miles) R Haddam Volunteer Fire Station, Higganum, Haddam, Middlesex Co., Connecticut, USA
11.4km (7.1 miles) S Forest Ridge Road, Higganum, Haddam, Middlesex Co., Connecticut, USA
12.0km (7.5 miles) T Rocky Hill Quarry, Rocky Hill, Hartford Co., Connecticut, USA
13.1km (8.1 miles) U John Salak Quarry, Haddam, Middlesex Co., Connecticut, USA
13.8km (8.6 miles) V Jail Hill Road locality (Jail Hill Quarry), Haddam, Middlesex Co., Connecticut, USA
15.9km (9.9 miles) W Hewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex Co., Connecticut, USA
17.1km (10.6 miles) X Durham, Middlesex Co., Connecticut, USA
17.3km (10.8 miles) Y 2368-2384 Berlin Turnpike (Former Hartford Drive-In), Newington, Hartford Co., Connecticut, USA
18.9km (11.8 miles) Z Newington, Hartford Co., Connecticut, USA
42.3km (26.3 miles) 0 Blue Stone Quarry, Waterbury, New Haven Co., Connecticut, USA
45.2km (28.1 miles) 1 Lead Mine Brook, Harwinton, Litchfield Co., Connecticut, USA
45.4km (28.2 miles) 2 Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield Co., Connecticut, USA
51.1km (31.8 miles) 3 State Route 8 and State Route 118 interchange, Harwinton, Litchfield Co., Connecticut, USA
51.5km (32.0 miles) 4 Torringford, Torrington, Litchfield Co., Connecticut, USA
55.3km (34.4 miles) 5 Curtis Quarry (Southford Quarry; Southford pegmatite; Southbury rose quartz quarry; Bridgeport Woodfinishing Co. Quarry; Hulls Hill), Southford, Southbury, New Haven Co., Connecticut, USA
55.5km (34.5 miles) 6 Nonnewaug River Industrial Park, Woodbury, Litchfield Co., Connecticut, USA
57.6km (35.8 miles) 7 Southbury, New Haven Co., Connecticut, USA
66.6km (41.4 miles) 8 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
66.6km (41.4 miles) 9 Roxbury Iron Mine (Shepaug Iron Company Mine; Shepaug Spathic Iron and Steel Company Mine), Mine Hill (Ore Hill), Roxbury, Litchfield Co., Connecticut, USA
Mineral and/or Locality  
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