Spatial-correlation properties of the wave functions (eigenvectors) of
a spin-one eigenproblem for dipole interaction is studied for random
geometries of the underlying system. This problem describes, in partic
ular, polar excitations (''plasmons'') of large clusters. In contrast
to Berry's conjecture of quantum chaos for massive particles. we have
found long-range spatial correlations for wave functions (eigenvectors
). For fractal systems, not only individual eigenvectors are chaotic,
but also the amplitude-correlation function exhibits an unusual chaoti
c, ''turbulent'' behavior that is preserved by ensemble averaging. For
disordered nonfractal systems, the eigenvectors show a mesoscopic del
ocalization transition different from the Anderson transition.