Peanut wood is a special type of fossilized wood which contains several silica "peanuts" within the material. These features were created when shipworms ate holes in prehistoric driftwood. Then, mud filled with tiny protozoa with silica skeletons filled these holes, eventually fossilizing into unique patterns within the wood. This material is known from the Windalia Radiolarite Formation in western Australia and dates back over 112,000,000 years to the Cretaceous.

This pendant contains a polished 1.27" piece of stunning peanut wood. It is an excellent piece of scientific jewelry that looks fantastic with any wardrobe.