I believe that was intended for the next patch but I'm not sure. The only two things I think they have SAID they plan to include were Sand and Granite that I'm aware of, though Jeremy did post in a thread asking for suggestions...
People suggested Empty Potion Bottles (and full ones in another thread), all plant resources, blank scrolls, lock picks, dragon scales...
I'm sure there were other things suggested... don't remember what else... Jeremy said "No promises" on that stuff... just taking notes on suggestions.