Gahnite Popovic J, Tkalcec E, Grzeta B, Kurajica S, Rakvin B American Mineralogist 94 (2009) 771-776 Inverse spinel structure of Co-doped gahnite Note: Sample S4, inversion parameter = .070, (Zn.75Co.25)Al2O4 _database_code_amcsd 0004943 8.0914 8.0914 8.0914 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso ZnT .125 .125 .125 .75 1.06 CoT .125 .125 .125 .18 1.06 AlT .125 .125 .125 .07 1.06 AlM .5 .5 .5 .965 .48 CoM .5 .5 .5 .035 .48 O .2631 .2631 .2631 .55