Fig. 4

The compositions of the precipitated minerals on the A and B sides as functions of \(\gamma\) when \(\delta =1\). The solid red and blue dashed lines indicate \(X_{\alpha }^{{{\rm A}}}\) and \(X_{\alpha }^{{{\rm B}}}\), respectively. In case of small and large \(\gamma\), the compositions of the precipitated minerals are considered to be homogeneous and heterogeneous, respectively