Scaphites Ammonite | South Dakota smokey quartz A unique piece of wearable

A unique piece of wearable deep-time history

these specimens are generally considered safe to handle because the radioactivity is trapped within the silica structure

is a metamorphic rock combining vibrant green zoisite

This item is 2” x 1

This item is 12” x 7” and weighs 40

Scaphites Ammonite | South Dakota smokey quartz A unique piece of wearableScaphites ammonites are extinct cephalopods known for their distinctive shells, featuring a tightly coiled juvenile stage that transitions into a straight, hook like adult body chamber. Found predominantly in Late Cretaceous marine deposits, these marine invertebrates had chambered shells for buoyancy, likely preyed on small organisms, and are important index fossils, with common South Dakota specimens showcasing iridescent shells and prominent ribs.