The top of this coffee table is made of petrified wood slices which are hand polished to show its beautiful natural patterns and grains. Each piece has its unique grains, patterns, colors, and minimal cracks and spots. This petrified wood table brings natural beauty and aesthetically pleasing modernity to any space. Petrified wood is a falling wood that has been buried in sediment for thousands of years without oxygen and transitioned into a stone/marble-like material. 2 are available. The tops are different. Please see the pictures.