Categories Geography Geology Onyx: Appearance Post author By cmptechworld56 Post date December 2, 2023 No Comments on Onyx: Appearance Onyx is a variety of chalcedony marked by its smooth texture and typically banded black, white or colored. Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like Loading... Tags black-onyx, brown, floral, flowers, Geography, Geology, jewelry, onyx, worldstar