Aegirine 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: ae50/20 _database_code_amcsd 0006820 9.7441 8.9103 5.2791 90 106.225 90 C2/c atom x y z occ Biso NaM2 0 .2984 .25 .50 .66 CaM2 0 .2984 .25 .50 .66 FeM1 0 .9011 .25 .44 SiT .2894 .0893 .2345 .39 O1 .1150 .0835 .1472 .58 O2 .3611 .2508 .3048 .77 O3 .3446 .0156 .9968 .65