Petrified Wood (Round Texture) is a semi-precious gemstone surface — a Mosaic of polished petrified-wood cross-sections — rounded fossilized log slices with concentric growth-ring detail tightly clustered into a slab. Natural fossil semi-precious stone with organic, irregular cell-structure patterning. slab with a polished finish, often backlit as a feature panel, vanity or bar front. A dramatic decorative stone for interior feature applications.