  Quarkonium resonances in the complex-mass scale are studied. Relativistic
quark potential model is used to describe the quark-antiquark system. The
complex-mass formula is obtained from two exact asymptotic solutions for the
QCD motivated potential with the distance-dependent value of the strong
coupling in QCD. The centered masses and total widths of some meson resonances
are calculated. A possible origin of the ``dark matter'' and the ``Missing
Mass''is discussed.
