Question: F. Assuming Fe, Mn, Mg and Ca mix on a single site and Al, Fe3+, and Cr mix on a single site in garnet,

F. Assuming Fe, Mn, Mg and Ca mix on a single site

F. Assuming Fe, Mn, Mg and Ca mix on a single site and Al, Fe3+, and Cr mix on a single site in garnet, write expressions for pyrope and grossular activities; include activity coefficients to account for non-ideal mixing on the 2+ site, but assume ideal behavior for the 3+ site.

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