Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Zircon from
U. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USA


Locality type:Road Cutting
Classification
Species:Zircon
Formula:Zr(SiO4)
Comments:Included in a list of minerals without details, but plausible for the geology.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Zircon data
Locality Data:Click here to view U. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:656994
Long-form Identifier:1:3:656994:5
GUID (UUID V4):0
Nearest other occurrences of Zircon
6.7km (4.2 miles) ⓘNorth Street mall, Danbury, Fairfield County, Connecticut, USA
8.9km (5.5 miles) ⓘOld Quarry Nature Center, Danbury, Fairfield County, Connecticut, USA
10.4km (6.4 miles) ⓘWestern Connecticut State University, Danbury, Fairfield County, Connecticut, USA
11.4km (7.1 miles) ⓘBiermann Quarries (Bethel quarries; Codfish Hill Quarry), Bethel, Fairfield County, Connecticut, USA
12.3km (7.6 miles) ⓘCaptain Cook's Quarry (Purdy Station Quarry), Newtown, Fairfield County, Connecticut, USA
14.1km (8.8 miles) ⓘRockside Quarry, Mine Hill, Roxbury, Litchfield County, Connecticut, USA
18.3km (11.4 miles) ⓘCurtis Quarry, Southford, Southbury, New Haven County, Connecticut, USA
19.1km (11.9 miles) ⓘInterstate 84 road cuts, Town of Southeast, Putnam County, New York, USA
20.2km (12.5 miles) ⓘCasey Quarry (Ridgefield pegmatite), Ridgefield, Fairfield County, Connecticut, USA
20.7km (12.9 miles) ⓘFillow Quarry, Branchville, Redding, Fairfield County, Connecticut, USA
References
Januzzi, Ronald. E. (1994) Mineral Data Book - Western Connecticut and Environs. Mineralogical Press, Danbury, Connecticut, USA.
Weber, Marcelle H., Sullivan, Earle C. (1995) Connecticut Mineral Locality Index. Rocks & Minerals, 70 (6) 396-409 doi:10.1080/00357529.1995.11761569
 
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