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: ae75/20 _database_code_amcsd 0006822 9.6977 8.8519 5.2861 90 106.765 90 C2/c atom x y z occ Biso NaM2 0 .2975 .25 .75 .66 CaM2 0 .2975 .25 .25 .66 FeM1 0 .8998 .25 .44 SiT .2884 .0883 .2361 .39 O1 .1171 .0830 .1351 .58 O2 .3507 .2504 .3128 .77 O3 .3493 .0118 .0105 .65