I have some walnut that looks almost exactly like that. It is from a tree that was cut down about 30 years ago. The wood was split and stacked but never burned (thankfully). I don't know if is the age of the wood, the sun, or the air that gives it that red color, but it sure is pretty.
If the grain and smell are right, I would guess that it is walnut. If it is oily and smells different it could be rosewood or cocobolo.