solve f and g with an explanation

Wollaxtonite ICa.Vi,O.I 4. Plot the following mineral formulas on the ternary diagram and label each point with the appropriate letter: a. (Ca0Mgas)2Si2O6 b. (Ca0Fes)2Si2O4 c. (Ca2Fe0MgO4)2Si2O6 d. (Ca0F2Fensomgo.an2Si2O6 e. What mineral group(s) is/are represented on this phase diagram? The mineral group represented on this phase diagram is silicate minerals. f. Which mineral (a,b,c, or d) is most likely to be part of a solid solution? Why? Enstane [ugaog 200 g. Which mineral (a,b,c, or d) is most likely not found in naturally occurring rocks? Why