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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Aragonite from
Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA


Locality type:Road Cutting
Classification
Species:Aragonite
Formula:CaCO3
Formation:Secondary
Comments:Included in a list with a question mark by the primary reference. Latter lists do not include a question mark, but provide no supporting details.
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Aragonite data
Locality Data:Click here to view Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:657231
Long-form Identifier:1:3:657231:0
GUID (UUID V4):0
Nearest other occurrences of Aragonite
17.0km (10.6 miles) ⓘState Route 179 road cut (State Route 4 road cut Collinsville), Burlington, Hartford County, Connecticut, USA
20.3km (12.6 miles) ⓘO & G Woodbury Traprock Quarry (Orenaug Quarry; O & G No. 1 Quarry), Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
22.2km (13.8 miles) ⓘFarmington Trap Rock Quarry, Farmington, Hartford County, Connecticut, USA
25.2km (15.6 miles) ⓘState Route 9 - Ellis Street and State Route 72 interchanges (State Route 72 roadcut), New Britain, Hartford County, Connecticut, USA
25.5km (15.8 miles) ⓘSherrill Street quarry, New Britain, Hartford County, Connecticut, USA
25.6km (15.9 miles) ⓘArute Field, New Britain, Hartford County, Connecticut, USA
26.4km (16.4 miles) ⓘThe Woodlands, Newington, Hartford County, Connecticut, USA
26.8km (16.7 miles) ⓘRoxbury Iron Mine, Mine Hill, Roxbury, Litchfield County, Connecticut, USA
28.7km (17.8 miles) ⓘState Routes 9 and 372 interchange, Berlin, Hartford County, Connecticut, USA
37.8km (23.5 miles) ⓘReed's Gap Quarry (New Haven Trap Rock quarry; Tilcon Durham quarry), Durham, Middlesex County, Connecticut, USA
References
Januzzi, Ron E., Seaman, David M. (1976) Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut, USA.
Segeler, Curt G., Molon, Joseph (1985) The Thomaston Dam Site Thomaston, Connecticut. Rocks & Minerals, 60 (3) 119-124 doi:10.1080/00357529.1985.11764386
 
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