Figure 9
The bimodal histogram of the experimentally measured angles (a) showing two main maxima, and their fitting to the main mineral candidates (b)–(e). The dashed lines are normal distributions centered on the two theoretical angles for each mineral. The red line is the summation of both distributions. The vertical solid lines mark the maximum of each of the distributions at the fixed values for each mineral. In (a) the solid black lines mark the maxima of the two normal distributions, and the position of the calculated interfacial angles for gypsum, aragonite and nahcolite is also shown. |