  Cd3As2 is a candidate three-dimensional Dirac semi-metal which has
exceedingly high mobility and non-saturating linear magnetoresistance that may
be relevant for future practical applications. We report magnetotransport and
tunnel diode oscillation measurements on Cd3As2, in magnetic fields up to 65 T
and temperatures between 1.5K to 300K. We find the non-saturating linear
magnetoresistance persist up to 65T and it is likely caused by disorder effects
as it scales with the high mobility, rather than directly linked to Fermi
surface changes even when approaching the quantum limit. From the observed
quantum oscillations, we determine the bulk three-dimensional Fermi surface
having signatures of Dirac behaviour with non-trivial Berry's phase shift, very
light effective quasiparticle masses and clear deviations from the
band-structure predictions. In very high fields we also detect signatures of
large Zeeman spin-splitting (g~16).
