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Opal-AN from
Curtis Quarry (Southford Quarry; Southford pegmatite; Southbury rose quartz quarry; Bridgeport Woodfinishing Co. Quarry; Hulls Hill), Southford, Southbury, New Haven Co., Connecticut, USA

Locality type:Quarry
Classification
Species:Opal var: Opal-AN
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
References
References:Ryerson, Kathleen H. (1972) Rockhouns Guide to Connecticut
Data
Mineral Data:Click here to view Opal-AN data
Locality Data:Click here to view Curtis Quarry (Southford Quarry; Southford pegmatite; Southbury rose quartz quarry; Bridgeport Woodfinishing Co. Quarry; Hulls Hill), Southford, Southbury, New Haven Co., Connecticut, USA
Nearest other occurrences of Opal-AN
5.1km (3.2 miles) Southbury, New Haven Co., Connecticut, USA
8.5km (5.3 miles) Nonnewaug River Industrial Park, Woodbury, Litchfield Co., Connecticut, USA
15.6km (9.7 miles) Sky Ridge railroad cut, Hawleyville, Newtown, Fairfield County, Connecticut, USA
18.1km (11.2 miles) Biermann Quarries (Bethel quarries) and tourmaline ledge, Bethel, Fairfield County, Connecticut, USA
18.2km (11.3 miles) Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA
18.3km (11.4 miles) U. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USA
18.4km (11.4 miles) Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA
19.0km (11.8 miles) Roxbury Iron Mine (Shepaug Iron Company Mine; Shepaug Spathic Iron and Steel Company Mine), Mine Hill (Ore Hill), Roxbury, Litchfield Co., Connecticut, USA
19.5km (12.1 miles) Blue Stone Quarry, Waterbury, New Haven Co., Connecticut, USA
23.7km (14.8 miles) North Street mall, Danbury, Fairfield County, Connecticut, USA
 
Mineral and/or Locality  
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