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Calcite from
Agstone Company Limestone Quarry, Danbury, Fairfield Co., Connecticut, USA

Locality type:Quarry
Classification
Species:Calcite
Formula:CaCO3
Comments:"The most well-known locality for large, well-formed calcite crystals occurs in the Beaverbrook District of Danbury, Connecticut." Januzzi (1959). Based on more specific references to other minerals, this statement refers to the Agstone Co. Quarry near the border with Brookfield. He also reports in 1959: "Collecting is not allowed but collection of minerals from this locality, including many fine calcite crystals may be seen at the office." Januzzi (1994) includes a photo of a a doubly-terminated, scalenohedral crystal dusted with tiny pyrites.
Habit:scalenohedral
Colour:white to pale yellow
Quality for species:Good crystals or rich for species - important (!)
Confirmation
Validity:Believed Valid
References
References:Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Agstone Company Limestone Quarry, Danbury, Fairfield Co., Connecticut, USA
Nearest other occurrences of Calcite
3.0km (1.8 miles) A U. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield Co., Connecticut, USA
4.1km (2.5 miles) B North Street mall, Danbury, Fairfield Co., Connecticut, USA
6.2km (3.8 miles) C Old lead mine, Brookfield, Fairfield Co., Connecticut, USA
6.3km (3.9 miles) D Bethel, Fairfield Co., Connecticut, USA
7.8km (4.8 miles) E Western Connecticut State College, Danbury, Fairfield Co., Connecticut, USA
10.2km (6.3 miles) F Interstate 84 road cuts (Route 6A bypass), Newtown, Fairfield Co., Connecticut, USA
11.0km (6.9 miles) G Sandy Hook gold mine (Blackwell's mine), Sandy Hook, Newtown, Fairfield Co., Connecticut, USA
11.9km (7.4 miles) H West Redding grossular locality, Redding (Reading), Fairfield Co., Connecticut, USA
14.1km (8.8 miles) I Redding (Reading), Fairfield Co., Connecticut, USA
16.0km (9.9 miles) J New England Materials quarry, Monroe, Fairfield Co., Connecticut, USA
16.7km (10.4 miles) K Roxbury Iron Mine (Shepaug Iron Company Mine; Shepaug Spathic Iron and Steel Company Mine), Mine Hill (Ore Hill), Roxbury, Litchfield Co., Connecticut, USA
16.8km (10.5 miles) L Bates' Rock Road, Southbury, New Haven Co., Connecticut, USA
16.9km (10.5 miles) M Heritage Village, Southbury, New Haven Co., Connecticut, USA
17.1km (10.6 miles) N Rockside Quarry (Mine Hill Quarry), Mine Hill (Ore Hill), Roxbury, Litchfield Co., Connecticut, USA
17.2km (10.7 miles) O Lane's Copper Mine (Fan Hill Road), Monroe, Fairfield Co., Connecticut, USA
17.8km (11.1 miles) P Ridgefield, Fairfield Co., Connecticut, USA
17.9km (11.1 miles) Q Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA
18.8km (11.7 miles) R Tuckahoe and Patterson Marble Company Quarry, Patterson, Putnam Co., New York, USA
18.9km (11.8 miles) S O & G Southbury Quarry (Silliman Quarry; O & G No. 2 Quarry), Southbury, New Haven Co., Connecticut, USA
19.3km (12.0 miles) T Advance Stone Quarry, Boardman's Bridge, New Milford, Litchfield Co., Connecticut, USA
19.8km (12.3 miles) U Tilly Foster Iron Mine, Brewster, Town of Southeast, Putnam Co., New York, USA
20.0km (12.5 miles) V Kyanite locality (Judds Bridge locality), Washington, Litchfield Co., Connecticut, USA
20.8km (12.9 miles) W Stevenson Mine (Burke's Copper Mine), Oxford, New Haven Co., Connecticut, USA
21.3km (13.3 miles) X Woodbury, Litchfield Co., Connecticut, USA
21.4km (13.3 miles) Y Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield Co., Connecticut, USA
21.8km (13.6 miles) Z 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
22.0km (13.7 miles) 0 O & G Woodbury Quarry (Orenaug Quarry; O & G No. 1 Quarry), Orenaug Hills, Woodbury, Litchfield Co., Connecticut, USA
25.3km (15.7 miles) 1 State Route 25 road cuts, Trumbull, Fairfield Co., Connecticut, USA
28.2km (17.5 miles) 2 Barrett Brothers Quarry (D and J Quarry), Beacon Falls, New Haven Co., Connecticut, USA
28.6km (17.8 miles) 3 Mahopac Mines (Hill Mine; German Flats Mine), Carmel, Putnam Co., New York, USA
30.8km (19.1 miles) 4 Unnamed Chlorite outcrop [1], Norwalk, Fairfield Co., Connecticut, USA
32.6km (20.3 miles) 5 Lord Chamberlain Nursing and Rehabilitation Center (7003 Main Street; 7003 State Route 110), Stratford, Fairfield Co., Connecticut, USA
34.1km (21.2 miles) 6 Waterbury, New Haven Co., Connecticut, USA
34.4km (21.4 miles) 7 Norwalk, Fairfield Co., Connecticut, USA
34.6km (21.5 miles) 8 State Route 8 exit 37, Watertown, Litchfield Co., Connecticut, USA
35.6km (22.1 miles) 9 Blue Stone Quarry, Waterbury, New Haven Co., Connecticut, USA
Mineral and/or Locality  
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