Pillow basalts form when basaltic lava erupts underwater. The lava cools rapidly on all sides forming a pillow shape that can break open and extrude more lava from its interior. This is a characteristic example of pillow basalt, from the Castine Formation.
Location: Condon Point, South Brooksville, Hancock County
Gift of The Vaaland Club
Specimen Sponsorship: $5,000