Goncalo Alves Grips

[Marshal Kane]

I'll be the first to admit that I'm no expert on identifying woods but given the reflection coming off the photo, I'd say the grips are walnut. From all I've seen, Goncalo Alves is noted for the straight grain bands of light and dark streaks running through it. Very noticeable and very beautiful.

 

[Warren Sear]

Goncalo Alves I still say.

Goncalo Alves | The Wood Database - Lumber Identification (Hardwood)