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Prehnite from
State Route 2 roadcut, Marlborough, Hartford Co., Connecticut, USA

Locality type:Road Cutting
Classification
Species:Prehnite
Formula:Ca2Al2Si3O10(OH)2
Comments:"Klaus Albrecht and the author collected many examples of yellow prehnite, associated with axinite and a variety of other minerals...One small piece shows beautiful individual ½ inch tabular crystals... the finest that the author has ever seen. Much of the massive prehnite contained anhydrite casts." Schooner (1958)
Habit:tabular
Colour:yellow
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Common
Confirmation
Validity:Believed Valid
References
References:Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough).
Data
Mineral Data:Click here to view Prehnite data
Locality Data:Click here to view State Route 2 roadcut, Marlborough, Hartford Co., Connecticut, USA
Nearest other occurrences of Prehnite
13.6km (8.5 miles) White Rock Mining District, Middletown, Middlesex Co., Connecticut, USA
13.8km (8.6 miles) White Rocks Quarry (Consolidated Quarry), White Rock Mining District, Middletown, Middlesex Co., Connecticut, USA
17.6km (10.9 miles) 2368-2384 Berlin Turnpike (Former Hartford Drive-In), Newington, Hartford Co., Connecticut, USA
18.9km (11.8 miles) Balf Quarry, Newington, Hartford Co., Connecticut, USA
19.0km (11.8 miles) Connecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
19.1km (11.9 miles) Newington, Hartford Co., Connecticut, USA
19.3km (12.0 miles) Trinity Ridge, Hartford, Hartford Co., Connecticut, USA
19.9km (12.4 miles) State Routes 9 and 372 interchange, Berlin, Hartford Co., Connecticut, USA
20.7km (12.9 miles) US Route 6 Willimantic Bypass expressway road cuts, Coventry, Tolland Co., Connecticut, USA
21.5km (13.4 miles) Unnamed Zeolite occurrence (1), Wadsworth Falls, Middlefield, Middlesex Co., Connecticut, USA
 
Mineral and/or Locality  
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