Also known as Tigerwood, Jobillo, or Muiracatiara, it has heartwood is typically a medium reddish brown with irregularly spaced streaks of dark brown to black. Color tends to darken with age. Some pieces of goncalo alves may be completely uniform in color with no streaks or stripes. Grain can be straight, but is usually wavy or interlocked and can have a fine, uniform texture with good natural luster