Degree of condensation as a function of grain temperature, using the parameterized dust description outlined in Sect. 3.2 (solid black line), and for a model with a detailed description of Mg₂SiO₄ grains (Höfner 2008, model A; dashed lines). The different dashed curves represent a selection of pulsation phases ϕ from the detailed model, where the degree of condensation has been normalized to vary between 0 and 1 to facilitate comparing the shape of the curves. The grey zone indicates how the parameter ΔT sets the width of the dust formation zone.