Tigerwood, Goncalo alves

Scientific name:  Astronium spp. (primarily A. fraxinifolium and A. graveolens)

Description:  Heartwood is typically a medium reddish-brown with irregularly spaced streaks of dark brown to black. Colour tends to darken with age. Some pieces of Tigerwood may be completely uniform in color with no streaks or stripes.  Grain can be straight, but is usually wavy or interlocked with fine, uniform texture and good natural lustre.

Properties:  Tigerwood is generally not too difficult to work, despite its high density. Figured pieces with irregular grain can pose a challenge in planing and machining operations. Tigerwood can also have a moderate blunting effect on cutters. The wood is very resistant to moisture absorption, which can make it difficult to glue; it turns and finishes well.