Peruvian Walnut Wood or Peruvian Walnut Lumber is classified as an Exotic wood and sometimes also referred to as Nogal and South American Walnut. Peruvian Walnut is dark brown with blackish streaks and it’s grain can vary from straight to wavy with a coarse texture but, can be polished to a very good finish. Peruvian Walnut is most often used for very fine furniture making and cabinetmaking, sporting goods, musical instruments, carving, decorative veneers and plywood facings. Peruvian Walnut has a Janka hardness rating of: 1080