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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Datolite from
State Route 372 construction site, Plainville, Hartford County, Connecticut, USA


Locality type:Construction Site
Classification
Species:Datolite
Formula:CaB(SiO4)(OH)
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Datolite data
Locality Data:Click here to view State Route 372 construction site, Plainville, Hartford County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:730346
Long-form Identifier:1:3:730346:3
GUID (UUID V4):0
Nearest other occurrences of Datolite
1.7km (1.0 miles) ⓘPlainville Trap Rock Quarry (Tilcon New Britain Quarry), Plainville, Hartford County, Connecticut, USA
1.8km (1.1 miles) ⓘInterstate 84 and State Route 72 Intersection, New Britain, Hartford County, Connecticut, USA
3.1km (1.9 miles) ⓘTomasso Quarry, Farmington, Hartford County, Connecticut, USA
5.8km (3.6 miles) ⓘState Route 4 road cut, Farmington, Hartford County, Connecticut, USA
6.5km (4.0 miles) ⓘFarmington Trap Rock Quarry, Farmington, Hartford County, Connecticut, USA
6.5km (4.1 miles) ⓘState Route 9 - Ellis Street and State Route 72 interchanges (State Route 72 roadcut), New Britain, Hartford County, Connecticut, USA
6.9km (4.3 miles) ⓘSherrill Street quarry, New Britain, Hartford County, Connecticut, USA
7.7km (4.8 miles) ⓘState Route 9 & State Route 71 Interchange, New Britain, Hartford County, Connecticut, USA
8.5km (5.3 miles) ⓘThe Woodlands, Newington, Hartford County, Connecticut, USA
11.4km (7.1 miles) ⓘ2368-2384 Berlin Turnpike (Former Hartford Drive-In), Newington, Hartford County, Connecticut, USA
References
Shepard Collection
 
and/or  
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