Rocky Neck State Park, Niantic, CT 2015
This boulder is typical of the geology found at Rocky Neck State Park. It's granitic gneiss, a metamorphic rock which forms under intense heat and pressure. Minerals found in this gneiss can include quartz, garnet, tourmaline and biotite. The gneiss found here is a part of a large formation of rocks known as Potter Hill Granite Gneiss.
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