Qandilite Millard R L, Peterson R C, Hunter B K American Mineralogist 80 (1995) 885-896 Study of the cubic to tetragonal transition in Mg2TiO4 and Zn2TiO4 spinels by 17O MAS NMR and Rietveld refinement of X-ray diffraction data Sample: RLM509, 1210 C, Mg2TiO4 _database_code_amcsd 0001747 8.46948 8.46948 8.46948 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Ti .125 .125 .125 .002 .21 Mg .125 .125 .125 .998 .21 Ti .5 .5 .5 .499 .31 Mg .5 .5 .5 .501 .31 O .2606 .2606 .2606 .92