Hedenbergite Abdu Y A, Hawthorne F C American Mineralogist 98 (2013) 1227-1234 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: Hd60Fs40 Locality: synthetic _database_code_amcsd 0019862 9.806 9.068 5.238 90 105.92 90 C2/c atom x y z occ Uiso FeM1 0 .90567 .25 .0100 FeM2 0 .3000 .25 .40 .0118 CaM2' 0 .2632 .25 .60 .0118 SiT .29196 .09056 .23993 .0094 O1 .1215 .0898 .1534 .0107 O2' .361 .252 .323 .6 .0092 O2'' .380 .229 .367 .4 .0092 O3' .3492 .03938 -.0142 .6 .0085 O3'' .3522 .0149 .0015 .4 .0085