I was OK with EIR but I got this useful link
http://www.wood-database.com/wood-artic ... rosewoods/
From it
"Brazilian Rosewood has another characteristic that can be leveraged in order to help distinguish it from other rosewoods: its heartwood extractives are not water soluble, and will not fluoresce under a blacklight."
So I performed a test between my sample and wood I know to be EIR, shown below. I put some shaving of the unknown wood in water, it did not fluoresce under the black light, I put some EIR shavings in and they turned a sickly green under the light, where the unknown shavings just stayed dark brown.
Also a little more clear in this picture, the EIR has an order of magnitude more pores.
The tests say it is Brazilian.