Diopside-ferrian Redhammer G J European Journal of Mineralogy 10 (1998) 439-452 Mossbauer spectroscopy and Rietveld refinement on synthetic ferri-Tschermak's molecule CaFe3+(Fe3+Si)O6 substituted diopside Sample: fts15/#2 _database_code_amcsd 0006722 9.7646 8.9200 5.2709 90 105.889 90 C2/c atom x y z occ Biso CaM2 0 .3023 1/4 .3 MgM1 0 .9074 1/4 .857 .34 FeM1 0 .9074 1/4 .143 .34 SiT .2860 .0938 .2275 .938 .51 FeT .2860 .0938 .2275 .062 .51 O1 .1166 .0882 .1425 .3 O2 .3615 .2505 .3212 .8 O3 .3520 .0205 .9968 .5