  A leading candidate for the heating source of chondrules and igneous rims is
shock waves. This mechanism generates high relative velocities between
chondrules and dust particles. We have investigated the possibility of the
chondrule destruction in collisions with dust particles behind a shock wave
using a semianalytical treatment. We find that the chondrules are destroyed
during melting in collisions. We derive the conditions for the destruction of
chondrules and show that the typical size of the observed chondrules satisfies
the condition. We suggest that the chondrule formation and rim accretion are
different events if they are heated by shock waves.
