Fig. 4. Ripidolite dissolution rates (R), determined on the basis of the sum of released framework elements, at increasing HNO3 concentrations (circles) and dissolution rates calculated by means of Eq. [2] (line).
Fig. 4. Ripidolite dissolution rates (R), determined on the basis of the sum of released framework elements, at increasing HNO3 concentrations (circles) and dissolution rates calculated by means of Eq. [2] (line).