The composition and structure of the material of the single-use ice casting pattern in many respects determine the quality both of the pattern and of the casting, obtained with its help, as far as later on that material is used in the production of the casting sand mold. Therefore, it is very important to understand the mechanism and kinetics of ice solidification in the process of obtaining the pattern as well as distribution of impurities in the ice. The modern crystallization patterns, taking into account the theory of clusters and fractals, are considered, and the examples of the patterns are given.