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: Hd70Fs30 Locality: synthetic _database_code_amcsd 0019863 9.819 9.056 5.242 90 105.61 90 C2/c atom x y z occ Uiso FeM1 0 .90619 .25 .00886 FeM2 0 .2998 .25 .30 .0103 CaM2' 0 .2627 .25 .70 .0103 SiT .29077 .09098 .23797 .00819 O1 .12074 .08997 .1530 .0096 O2' .3614 .2468 .3202 .7 .0099 O2'' .3808 .2370 .3745 .3 .0099 O3' .362 .019 .011 .7 .0103 O3'' .3463 .0246 -.011 .3 .0103