Basalte Vacuolaire
Coleman is holding a, Vesicular basalt, volcanic rock he found on the seashore in an area of the beach where he was finding seashells.
According to Google AI, Vesicular basalt is not naturally apart of Myrtle Beach’s local geological shoreline. It suggests that it could”be either Fossilized Peat or Coal (some found near the Grand Strand), “Beach Rot”or Fossilized Marls (Frequently seen near the 2nd Avenue Pier), or Piddock-Bored Rocks.
The Piddock-Bored Rocks appear vesicular since they are covered with small, circular holes. These holes are actually burrows made by piddock clams (rock-boring mollusks) in softer sedimentary rocks like limestone or siltstone.
Therefore, considering our location along Myrtle Beach’s seashore (we were walking along the Grand Strand near the 2nd Avenue Pier, it could instead be any one of these three. I’m inclined to lean towards the Piddock-Bored Rock, the area is covered with clam shells.
Click on image to enlarge.
Photo Credit:©️2026 Deb L. Waters … All Rights Reserved.
Camera: Canon EOS Rebel 2000D with Canon EF-S55-250mm lens and Altura UV Filter attachment
Location: Myrtle Beach, South Carolina, USA
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