Citation: Abdu, Y. A.; Hawthorne, F. C. (2013). Local structure in C2/c clinopyroxenes on the hedenbergite (CaFeSi2O6)- ferrosilite (Fe2Si2O6) join: A new interpretation for the Mossbauer spectra of Ca-rich C2/c clinopyroxenes and implications for pyroxene exsolution Note split-M2-O2-O3 model Sample: Hd50Fs50. American Mineralogist, 98, pp. 1227-1234.