Ring with beautiful green petrified opalized wood

Beautiful petrified opalized wood, with unique shape in sterling silver ring base ( small ) between 6-7 size ring with stunning patterns

Opalized  wood is a type of petrified wood that has been replaced by opal. It is formed when silica-rich water infiltrates the cellular structure of wood and gradually replaces the original organic material with silica. This process can take millions of years.

it reminds me a sallow water in Ionian Sea!