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: MgMn01 _database_code_amcsd 0004260 8.0883 8.0883 8.0883 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 .760 .0039 .0039 .0039 0 0 0 AlT .125 .125 .125 .234 .0039 .0039 .0039 0 0 0 Mn2+T .125 .125 .125 .003 .0039 .0039 .0039 0 0 0 Mn3+T .125 .125 .125 .003 .0039 .0039 .0039 0 0 0 AlM .5 .5 .5 .879 .0041 .0041 .0041 0 0 0 MgM .5 .5 .5 .117 .0041 .0041 .0041 0 0 0 Mn2+M .5 .5 .5 .0015 .0041 .0041 .0041 0 0 0 Mn3+M .5 .5 .5 .003 .0041 .0041 .0041 0 0 0 O .26213 .26213 .26213 .0072 .0072 .0072 0 0 0