5 million years ago) and were found in Utah

The matrix (stone containing the apatite crystals) measures 1

They were found in the Hell Creek Formation of Montana and are at least 68-66 million years old

This bone is ~5

This is a representative photo showcasing the quality of what the buyer will receive

Iridescent Ammonite (South Dakota) D, 4.75" Roman 5 million years ago) andReal, iridescent, ammonite for sale! This specimen also has beautiful dendrites! These are from the Fox Hills Formation of South Dakota, USA and date back to the Late Cretaceous. Measuring ~4. 75" across, this specimen was once on display at the Hobberlin Museum in Ontario, Canada. We can ship this specimen worldwide.