Spinel Bosi F, Halenius U, Andreozzi G B, Skogby H, Lucchesi S American Mineralogist 92 (2007) 27-33 Structural refinement and crystal chemistry of Mn-doped spinel: A case for tetrahedrally coordinated Mn3+ in an oxygen-based structure Sample: MgMn10 _database_code_amcsd 0004262 8.1321 8.1321 8.1321 90 90 90 *Fd3m .125 .125 .125 atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) MgT .125 .125 .125 .749 .0055 .0055 .0055 0 0 0 AlT .125 .125 .125 .134 .0055 .0055 .0055 0 0 0 Mn2+T .125 .125 .125 .027 .0055 .0055 .0055 0 0 0 Mn3+T .125 .125 .125 .089 .0055 .0055 .0055 0 0 0 AlM .5 .5 .5 .837 .0053 .0053 .0053 0 0 0 MgM .5 .5 .5 .069 .0053 .0053 .0053 0 0 0 Mn2+M .5 .5 .5 .0425 .0053 .0053 .0053 0 0 0 Mn3+M .5 .5 .5 .0515 .0053 .0053 .0053 0 0 0 O .26232 .26232 .26232 .0108 .0108 .0108 0 0 0