Top: Silicate grain sphericity evolution with respect to the number of atoms in the grain for both pyroxene (red) and olivine (blue) composition obtained at 1100 K. The bottom panel shows the corresponding ratio (as a percentage) of pyroxene to olivine sphericity. The results were obtained from averages over ten NAGGS simulations. The corresponding analysis for grains grown at 600 K can be found in F.1.