Supplementary information for the manuscript

The role of pH and Mg on the stabil ity and crystall ization of amorphous calcium carbonate

J.D. Rodriguez-Blanco∗, S. Shaw, P. Bots, T. Roncal-Herrero, L.G. Benning

School of Earth and Environment, University of Leeds, Leeds LS2 9JT, United Kingdom

Figure S1: Evolution of the pH as a function of time for experiments 1 and 2.

Figure S2: Representative XRD pattern of ACC obtained immediately after mixing of solutions in all experiments.

Figure S3: XRD pattern of calcite obtained as a final product in experiment 1.

Figure S4: XRD pattern of calcite obtained as a final product in experiment 3.

Figure S5: Photomicrograph of calcite crystals obtained as an end product of experiment 1.