I've had several PM's with questions about the fretboard. The wood is Asian Ebony, which comes from SE Asia -- it is truly an Ebony and NOT a kind of Rosewood. There are several species of Ebony, including Gaboon, Madagascar, Macassar and Asian. Gaboon Ebony is typically quite black, while Madagascar Ebony is often black, but with some color "variegation" in the wood. These are the Ebony's that folks seem to be most-familiar with.
Macassar and Asian Ebony typically have stripes in the wood -- Macassar's stripes are usually a bit thicker and bolder, while Asian's stripes are generally thinner and lighter. George Furlanetto often uses Asian Ebony in his builds -- I've seen several Fbasses with Asian Ebony fretboards.
Hope this helps!