Bumpy Clay Concretion

Discover the geological legacy of the Pacific Northwest through these remarkable clay concretions—natural stone formations shaped by millions of years of glacial activity. Born in ancient shallow waters, these hardened clay bodies developed as minerals like calcium crystallized in concentric layers around core materials such as sand or shell fragments. Today, they emerge from Puget Sound beaches and eroded shoreline banks, each piece a tangible record of regional sediment dynamics and prehistoric aquatic environments. Their distinctive, varied silhouettes make them compelling specimens for geology enthusiasts, natural history collectors, and those seeking authentic connections to the land's deep temporal story. This Specimen was acquired through an estate sale in the Puget Sound.