What is permineralized peice of wood called?

A permineralized piece of wood is called "petrified wood." This process occurs when minerals, often from groundwater, infiltrate the organic material over time, replacing the wood's original structure while preserving its form. The result is a fossilized version of the wood that can exhibit beautiful patterns and colors due to the minerals involved. Petrified wood is often found in areas with volcanic activity or sedimentary deposits.