Thermodynamic Properties of Pyroxene Solid Solutions with general formula (Na,Ca,Mg,Fe2+)[M2](Mg,Fe2+,Ti,Al,Fe3+)[M1](Al,Fe3+,Si)2[TET]O6 and structure type cpx, pig, or opx.
Sack RO, Ghiorso MS (1994a) Thermodynamics of multicomponent pyroxenes I. Formulation of general model. Contributions to Mineralogy and Petrology 116, 277-286.
Sack RO, Ghiorso MS (1994b) Thermodynamics of multicomponent pyroxenes II. Applications to phase relations in the quadrilateral. Contributions to Mineralogy and Petrology 116, 287-300.
Sack RO, Ghiorso MS (1994c) Thermodynamics of multicomponent pyroxenes III. Calibration of Fe2+(Mg)-1, TiAl(MgSi)-1, TiFe3+(MgSi)-1, AlFe3+(MgSi)-1, NaAl(CaMg)-1, Al2(MgSi)-1, and Ca(Mg)-1 exchange reactions between pyroxenes and silicate melts. Contributions to Mineralogy and Petrology. 118, 271-296