Figure 5.10a. NaAlSiO4-SiO2 Stability Diagram. Equilibrium assemblages are shown for the 2-component system NaAlSiO4-SiO2 with colored circles for the stable minerals plotted on a composition line. Regions with different assemblage diagrams (lines) are separated by black lines that mark the T-P conditions for chemical reactions. Use the assemblage diagrams and the conservation of mass constraints described in the text to determine the chemical reactions for each of the two reaction lines. Select the button that gives the equation for each reaction when moving up temperature (low temperature reactants on the left). The listed reactions give only the reactant and product minerals without coefficients. Then click the "Submit Answer" button.
