  We propose a class of stationary color magnetic solutions in a pure quantum
chromodynamics (QCD) which are stable under gluon quantum fluctuations. This
resolves a long-standing problem of microscopic description of a stable
non-trivial vacuum in a pure QCD. The solutions represent fixed points in a
full space of gauge fields under Weyl group transformations. An important
feature of the solutions is the phenomenon of Weyl invariant Abelian projection
and Abelian dominance in the vacuum structure. As an application of our
approach we consider an effective Lagrangian of pure Abelian glueballs in the
presence of vacuum gluon condensate.
