Li2O - ZnO - MoO3 pseudo ternary system was used for the growth of Li2Zn2(MoO4)(3) crystals by the top seeded solution growth technique in which MoO3 was used as a solvent. Properties of the melts (density, viscosity) have been experimentally measured at different temperatures and compositions of Li2O - ZnO - MoO3 pseudo ternary system. Heat mass transfer in the crystal growth setup was numerically simulated. Using the simulation results a real growth setup was made, Li2Zn2(MoO4)(3) crystals were grown and their properties were studied.