  It is shown that an ensemble of particles with tripolar (colour) charges will
necessarily cohere in a hierarchy of structures, from simple clusters and
strings to complex aggregates and cyclic molecule-like structures. The basic
combinatoric rule remains essentially the same on different levels of the
hierarchy, thus leading to a pattern of resemblance between different levels.
The number of primitive charges in each structure is determined by the symmetry
of the combined effective potential of this structure. The outlined scheme can
serve as a framework for building a model of composite fundamental fermions.
