A friend that came by also guessed ironwood, if I thought it would look anything like that knife handle I would sure use it in my next bow build for the riser.

A friend that came by also guessed ironwood, if I thought it would look anything like that knife handle I would sure use it in my next bow build for the riser.

Man ... I say you need to calculate the density, try some UV light, you could also do an extractive UV test to rule out the rosewoods. Also maybe take a good picture of well sanded end grain, that might help.

End before sanding off wax...

After sanding some. Stops up sandpaper fast, it's like it is impregnated with wax.

Sanding disk clogged..

As Littleben says a density test would really help as well.
It looks like it could be Desert Ironwood to me as well.