  We report the growth of YFe2O4-\delta\ single crystals by the optical
floating zone method, showing for the first time the same magnetization as
highly stoichiometric (\delta = 0.00) powder samples and sharp superstructure
reflections in single crystal x-ray diffraction. The latter can be attributed
to three dimensional long-range charge ordering. Resonant x-ray diffraction at
the Fe K-edge with full linear polarization analysis was used for the
investigation of the possibility of orbital order.
