Scandium-fluor-eckermannite Raudsepp M, Turnock A C, Hawthorne F C American Mineralogist 72 (1987) 959-964 Characterization of cation ordering in synthetic scandium-fluor-eckermannite, indium-fluor-eckermannite, and scandium-fluor-nyboite by Rietveld structure refinement Sample: FScEC-A3 _database_code_amcsd 0001115 9.8384 18.0634 5.2926 90 103.650 90 C2/m atom x y z occ Biso O1 .1151 .0877 .214 .8 O2 .1159 .1673 .724 .8 F3 .1068 0 .712 .8 O4 .3609 .2481 .795 .8 O5 .3490 .1269 .080 1.1 O6 .3475 .1172 .590 1.1 O7 .345 0 .300 1.2 Si1 .2828 .0839 .2915 .4 Si2 .2884 .1688 .7945 .4 Mg1 0 .0865 .5 .974 .6 Sc1 0 .0865 .5 .026 .6 Mg2 0 .1817 0 .573 .6 Sc2 0 .1817 0 .427 .6 Mg3 0 0 0 .6 Na4 0 .2756 .5 .9 NaA .032 .5 .080 .5 2.3