Opalized Ammonite

Size: 1 - 1.5 inches

Opalized Ammonite Fossil Specimen ~

These Opalized Ammonite specimens have a brilliant, iridescent rainbow sheen. This natural opalization is a rare effect that is sometimes seen on these ancient fossils! You can expect that these Ammonite fossils may have chips or small abrasions, a normal characteristic of these natural specimens.

The Ammonite is a shelled nautilus that was part of a now extinct group of marine invertebrate mammals. It is a beautiful example of the Fibonacci spiral exhibiting itself in nature, as in the classic nautilus shell. They sometimes grow with a beautiful opalized sheen around the outside of the shell.