Ziricote (Cordia dodecandra) grows in Central to South America. Physically, it is hard, heavy, brittle, and stiff—much like ebony. Visually, it is gray with black streaks and variegations. It reminds me of a monochrome version of Brazilian rosewood—it even has high-contrast creamy sapwood.
Ziricote is another wood that I have extensive experience with making pens, boxes, and turnings. I haven't built a spec guitar with it because of its cost and I suspect it will troublesome to bend (don't ask for a Venetian cutaway just yet). It is a very beautiful wood and all indications are that it would make a wonderful guitar.