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Bertrandite 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:Bertrandite
Formula:Be4(Si2O7)(OH)2
Confirmation
Validity:Believed Valid
References
References:Ryerson, Kathleen H. (1972) Rockhouns Guide to Connecticut
Data
Mineral Data:Click here to view Bertrandite 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 Bertrandite
14.6km (9.0 miles) Woodbury pegmatite quarry, Woodbury, Litchfield Co., Connecticut, USA
16.5km (10.3 miles) Captain Cook's Quarry (Purdy Station Quarry), Newtown, Fairfield County, Connecticut, USA
18.1km (11.2 miles) Biermann Quarries (Bethel quarries) and tourmaline ledge, Bethel, 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
19.8km (12.3 miles) Brookfield, Fairfield County, Connecticut, USA
21.3km (13.3 miles) State Route 25 road cuts, Trumbull, Fairfield County, Connecticut, USA
23.1km (14.4 miles) Trumbull, Fairfield County, Connecticut, USA
25.1km (15.6 miles) Morris Dam Quarry (East Morris Dam), Morris, Litchfield Co., Connecticut, USA
29.9km (18.6 miles) Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield County, Connecticut, USA
31.5km (19.6 miles) New England Mining Company Quarry (Roebling Mine; Hewitt's Mine), Upper Merryall, New Milford, Litchfield Co., Connecticut, USA
 
Mineral and/or Locality  
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