  In this study, a comprehensive view of a model crystal formation in a complex
fluctuating medium is presented. The model incorporates Gaussian curvature
effects at the crystal boundary as well as the possibility for superdiffusive
motion near the crystal surface. A special emphasis is put on the finite-size
effect of the building blocks (macroions, or the aggregates of macroions)
constituting the crystal. From it an integrated static-dynamic picture of the
crystal formation in terms of mesoscopic nonequilibrium thermodynamics (MNET),
and with inclusion of the physically sound effects mentioned, emerges. Its
quantitative measure appears to be the overall diffusion function of the
formation which contains both finite-size curvature-inducing effects as well as
a time-dependent superdiffusive part. A quite remarkable agreement with
experiments, mostly those concerning investigations of dynamic growth layer of
(poly)crystaline aggregation, exemplified by non-Kossel crystals and
biomolecular spherulites, has been achieved.
