However, we recently reported the possibility of synthesizing monodisperse calcite particles, as small as 400 nm, in high supersaturation conditions. This was achieved in a chemical precipitation process involving the mixing of CaCl 2 and Na 2 CO 3 solutions in equimolar and equivolume proportions. We showed that high growth inhibition is achieved by dispersing the precipitates in Ca(OH) 2 solution. Unlike similar studies, the improved growth inhibition is due to the separation of the crystal nucleation phase from the growth inhibition step, where additive Ca 2+ ions from the Ca(OH) 2 solution irreversibly adsorb on the precipitates and altered their growth.