Diopside 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: fts10/#2 _database_code_amcsd 0006720 9.7600 8.9236 5.2670 90 105.890 90 C2/c atom x y z occ Biso CaM2 0 .3017 1/4 .33 MgM1 0 .9073 1/4 .895 .4 FeM1 0 .9073 1/4 .105 .4 SiT .2867 .0934 .2297 .95 .43 FeT .2867 .0934 .2297 .05 .43 O1 .1166 .0872 .1421 .21 O2 .3613 .2495 .3206 .35 O3 .3505 .0183 .9958 .3