i.e., crystallization takes a time that decreases as one over the one-quarter power of the nucleation rate per unit volume, N ˙ {\displaystyle {\dot {N}}} , and one over the three-quarters power of the growth velocity G ˙ {\displaystyle {\dot {G}}} . Typical crystallites grow for some fraction of the crystallization time t X {\displaystyle t_{X}} , and so have a linear dimension G ˙ t X {\displaystyle {\dot {G}}t_{X}} , or