Good question.
Much of it is oak, some fairly plain american white and others european with more figure. These came from flooring jobs (wish I'd kept some of the others). Rosewood on the left, not sure which and have had a batch of this for 30 years, "rescued" from a factory going bust, which made cutlery blanks etc. the rest are various mahogany types.
I have a good selection of timbers going back a very long way so it's going to be fun sorting it out.
I've actually done my first bit of turning in 15 years tonight. A candle holder for my brother so it's a guinea pig test bit. Might post it to be shot down in flames 
Bob