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: hd/6 _database_code_amcsd 0006815 9.8475 9.0277 5.2495 90 104.805 90 C2/c atom x y z occ Biso NaM2 0 .3004 .25 .06 .36 CaM2 0 .3004 .25 .94 .36 FeM1 0 .9073 .25 .47 SiT .2869 .0931 .2319 .28 O1 .1230 .0916 .1529 .86 O2 .3644 .2457 .3228 1.08 O3 .3463 .0210 .0020 1.17