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
Reed's Gap Quarry (New Haven Trap Rock quarry; Tilcon Durham quarry), Durham, Middlesex County, Connecticut, USA


04540940017795614874912.jpg
Datolite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
02029980017272041145572.jpg
Datolite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
07219650017272041163555.jpg
Datolite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
09500180017794773539125.jpg
Datolite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
07183250017362104956573.jpg
Datolite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
01404400017491574329560.jpg
Datolite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
04540940017795614874912.jpg
Datolite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
02029980017272041145572.jpg
Datolite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
07219650017272041163555.jpg
Datolite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
Locality type:Quarry
Classification
Species:Datolite
Formula:CaB(SiO4)(OH)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Fluorapophyllite-(K)2
Prehnite1
Babingtonite1
Calcite1
Pyrite1
Data
Mineral Data:Click here to view Datolite data
Locality Data:Click here to view Reed's Gap Quarry (New Haven Trap Rock quarry; Tilcon Durham quarry), Durham, Middlesex County, Connecticut, USA
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:657121
Long-form Identifier:1:3:657121:4
GUID (UUID V4):0
Nearest other occurrences of Datolite
11.5km (7.1 miles) ⓘMeriden Trap Rock Quarry (Lane's Quarry), Meriden, New Haven County, Connecticut, USA
11.7km (7.3 miles) ⓘPillow lava locality, Meriden, New Haven County, Connecticut, USA
12.3km (7.6 miles) ⓘHubbard Park Quartz locality, Meriden, New Haven County, Connecticut, USA
15.1km (9.4 miles) ⓘNorth Branford Quarry, North Branford, New Haven County, Connecticut, USA
16.6km (10.3 miles) ⓘInterstate 691 and State Route 10 Interchange, Cheshire, New Haven County, Connecticut, USA
16.9km (10.5 miles) ⓘCheshire Traprock Quarry, Cheshire, New Haven County, Connecticut, USA
17.7km (11.0 miles) ⓘRoaring Brook, Cheshire, New Haven County, Connecticut, USA
20.6km (12.8 miles) ⓘSherrill Street quarry, New Britain, Hartford County, Connecticut, USA
21.1km (13.1 miles) ⓘState Route 9 - Ellis Street and State Route 72 interchanges (State Route 72 roadcut), New Britain, Hartford County, Connecticut, USA
23.5km (14.6 miles) ⓘPlainville Trap Rock Quarry (Tilcon New Britain Quarry), Plainville, Hartford County, Connecticut, USA
References
Brunet (1980)
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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