Abstract-This paper deals with the growth behaviour of the Mn-Ca-C0 3 -H 2 0 solid solution-aqueous solution system on calcite {1O I 4} surfaces. This system represents a model example, which allows us to study the effect of a number of controlling factors on the crystallisation: (1) the supersaturation function, (3(x), and nucleation rate function, J(x), for the Mn-Ca-C0 3 -H 2 0 system, (2) the relationship of such functions to the molecular scale growth mechanisms operating on growing surfaces, and (3) the surface structure of the calcite {1O I 4} faces. In situ atomic force microscopy (AFM) growth experiments revealed a wide variety of surface phenomena, such as the transition between growth mechanisms, anisotropic changes in the step rates, and the influence of the Mn-bearing newly formed surface on subsequent growth (step stoppage followed by the formation of two-dimensional nuclei and the reproduction of the original calcite {1014} surface microtopog raphy). These phenomena result from the interplay between the controlling parameters and are explained in those terms.
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