Hedenbergite Redhammer G J, Amthauer G, Lottermoser W, Treutmann W European Journal of Mineralogy 12 (2000) 105-120 Synthesis and structural properties of clinopyroxenes of the hedenbergite CaFeSi2O6 - aegirine NaFeSi2O6 solid-solution series Sample: ae40/20 _database_code_amcsd 0006818 9.7598 8.9277 5.2748 90 106.041 90 C2/c atom x y z occ Biso NaM2 0 .2984 .25 .40 .49 CaM2 0 .2984 .25 .60 .49 FeM1 0 .9017 .25 .47 SiT .2883 .0885 .2350 .03 O1 .1194 .0856 .1480 1.02 O2 .3586 .2483 .3197 .92 O3 .3525 .0134 .0018 .15