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: fts6/#2 _database_code_amcsd 0006719 9.7433 8.9410 5.2511 90 105.936 90 C2/c atom x y z occ Biso CaM2 0 .3009 1/4 .63 MgM1 0 .9072 1/4 .943 .37 FeM1 0 .9072 1/4 .057 .37 SiT .2862 .0936 .2290 .9635 .35 FeT .2862 .0936 .2290 .0365 .35 O1 .1164 .0874 .1438 .51 O2 .3617 .2481 .3174 .65 O3 .3505 .0169 .9933 .56