Adena cultures created gorgets from slate and copper, but the Hopewell Exchange System brought exotic shells from the Gulf northward.
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The conch shells were fashioned into gorgets and drinking cups engraved with intricate designs representing costumed men, real and mythical animals, and geometric motifs, all of which had profound symbolic significance.
A number of important finds have been associated with the site, most particularly several examples of Mississippian stone statuary and the Castalian Springs shell gorget held by the National Museum of the American Indian.