Superheavy objects composed of nuclear and dark matter
  We consider a model of $O$He atomic dark matter formed by Coulomb binding of
the hypothetical stable double-charged massive $O^{--}$ particles with nuclei
of primordial helium. Such a dark matter can be captured by ordinary matter
forming superheavy nuclei. We propose a possibility of self-bound by nuclear
and electromagnetic interaction $O$-nuclearites as well as more massive
gravitating ones and discuss effect of accumulation of $O$He atoms in stars and
their effect in stellar evolution.
