Maracatiara 

Astronium lecointei Ducke, Anacardiaceae

When fresh, the heartwood is russet brown, orange brown, or reddish brown to red with narrow to wide irregular stripes of medium to very dark brown. After exposure it becomes brown, red, or dark reddish brown with nearly black stripes. The dingy grayish or brownish-white sapwood, 2 to 4 inches wide, is sharply demarcated. Grain is variable, texture fine to medium, uniform, no distinctive odor or taste. The wood often has a striking figure caused by irregular dark longitudinal bands.