  Quasicrystals are solid structures with symmetry forbidden by
crystallographic rules. Because of this some structural characteristics of
quasicrystals, for instance, radial distribution function, can look similar to
the ones of amorphous phases. This is of principal importance since radial
distribution function is the main property to characterize the structure in
molecular simulation. In the present paper we compare the radial distribution
functions and dynamical properties of three systems in the vicinity of glass
transition, quasicrystal formation and crystallization. We show that in spite
of similarity of radial distribution functions the dynamical properties of a
system in the vicinity of quasicrystal are qualitatively equivalent to the ones
of crystal. Because of this combination the radial distribution functions with
investigation of dynamics of the liquid allows unambiguously distinguish glass
and quasicrystal.
