McLay Avenue, East Haven, New Haven Co., Connecticut, USA
Residential road construction in 1987 blasted into diabase (one of the many dikes of the Fair Haven dike swarm) just north of the Cinque Quarry and displaying similar mineralogy. Much of the diabase is brecciated. All exposures are covered.
var: Smoky Quartz
7 entries listed. 4 valid minerals.
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Vener, Herm. (1987): Report On The Road Cut [Mclay Avenue] Off Grannis St [Laurel Street] Just Past The Cinque Quarry. Triassic Valley Bulletin.
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