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


Locality type:Road Cutting
Classification
Species:Beryl
Formula:Be3Al2(Si6O18)
Formation:Primary
Comments:Included in species lists with no supporting information. Possibly occurs in the pegmatite at the cut, but no documented specimens.
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Beryl data
Locality Data:Click here to view Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:37858
Long-form Identifier:1:3:37858:5
GUID (UUID V4):0
Nearest other occurrences of Beryl
2.8km (1.7 miles) ⓘLead Mine Brook, Harwinton, Litchfield County, Connecticut, USA
5.5km (3.4 miles) ⓘRock Brook, Harwinton, Litchfield County, Connecticut, USA
7.1km (4.4 miles) ⓘMorris Dam Quarry (East Morris Dam), Morris, Litchfield County, Connecticut, USA
7.7km (4.8 miles) ⓘState Routes 8 and 118 interchange, Harwinton, Litchfield County, Connecticut, USA
7.8km (4.9 miles) ⓘPegmatite quarry and ultramafic rock, Harwinton, Litchfield County, Connecticut, USA
17.4km (10.8 miles) ⓘWoodbury pegmatite quarry (Judson Quarry), Woodbury, Litchfield County, Connecticut, USA
25.4km (15.8 miles) ⓘRobin Drive, Ratlum Mountain, Canton, Hartford County, Connecticut, USA
29.0km (18.0 miles) ⓘCurtis Quarry, Southford, Southbury, New Haven County, Connecticut, USA
30.6km (19.0 miles) ⓘState Route 67 construction site, Oxford, New Haven County, Connecticut, USA
30.8km (19.1 miles) ⓘRoebling Quarry, Upper Merryall, New Milford, Litchfield 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.
 
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