Chromite Lenaz D, Logvinova A M, Princivalle F, Sobolev N V American Mineralogist 94 (2009) 1067-1070 Structural parameters of chromite included in diamond and kimberlites from Siberia: A new tool for discriminating ultramafic source Locality: Udachnaya mine, Daldyn kimberlitic field, close to Arctic Circle, Russia Note: sample UDK5 _database_code_amcsd 0004964 8.3249 8.3249 8.3249 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso MgT .125 .125 .125 .591 .0064 AlT .125 .125 .125 .016 .0064 MnT .125 .125 .125 .008 .0064 Fe2+T .125 .125 .125 .373 .0064 Fe3+T .125 .125 .125 .012 .0064 MgM .5 .5 .5 .009 .0041 AlM .5 .5 .5 .115 .0041 CrM .5 .5 .5 .851 .0041 Fe2+M .5 .5 .5 .002 .0041 Fe3+M .5 .5 .5 .021 .0041 NiM .5 .5 .5 .002 .0041 O .26203 .26203 .26203 .0058