Titanite Liferovich R P, Mitchell R H The Canadian Mineralogist 44 (2006) 1089-1097 Solid solutions of niobium in synthetic titanite Sample: NaNb2 _database_code_amcsd 0006099 7.0952 8.7172 6.5824 90 113.982 90 A2/a atom x y z occ Biso CaX .25 .1691 0 .8 .65 NaX .25 .1691 0 .2 .65 TiY .5 0 .5 .8 .78 NbY .5 0 .5 .2 .78 Si .75 .1800 0 .22 O1 .75 .0658 .5 .39 O2 .9112 .0682 .1816 .39 O3 .3849 .2152 .4048 .39