I was sold some timber as Bolivian Rosewood but I think it is actually Ipe. I weighed a sample against some Jatoba and the mystery timber was 5oz and my Jatoba sample was 4.7 oz. The lumber is 11 ft long and very straight grained. It doesn't flouresce nor does the dust in a test tube. It is very dense and hard to cut like the Jatoba. I think that rules out any of the Mohognay species. I got a good price so even if it turns out to be Ipe I am not upset.