Celsian Griffen D T, Ribbe P H American Mineralogist 61 (1976) 414-418 Refinement of the crystal structure of celsian _database_code_amcsd 0000519 8.622 13.078 14.411 90 115.1 90 I2/c atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Ba1 .2827 0 .0653 .0028 .0014 .0019 -.0001 .0007 -.0001 Al1 .0096 .1820 .1103 .5 .0028 .0009 .0012 -.0001 .0008 -.0001 Si1 .0096 .1820 .1103 .5 .0028 .0009 .0012 -.0001 .0008 -.0001 Al2 .0076 .1830 .6148 .5 .0013 .0007 .0008 -.0004 .0002 .0000 Si2 .0076 .1830 .6148 .5 .0013 .0007 .0008 -.0004 .0002 .0000 Al3 .7054 .1214 .1730 .5 .0022 .0004 .0009 .0003 .0005 .0001 Si3 .7054 .1214 .1730 .5 .0022 .0004 .0009 .0003 .0005 .0001 Al4 .7019 .1163 .6743 .5 .0016 .0007 .0010 -.0001 .0004 .0001 Si4 .7019 .1163 .6743 .5 .0016 .0007 .0010 -.0001 .0004 .0001 O1 .0005 .1377 -.0002 .0047 .0005 .0008 -.0005 .0006 .0000 O2 .6206 -.0003 .1438 .0031 .0002 .0022 .0008 .0005 .0004 O3 .8349 .1368 .1119 .0064 .0015 .0027 -.0011 .0022 -.0002 O4 .8198 .1370 .6136 .0039 .0009 .0016 .0004 .0004 -.0001 O5 .0220 .3062 .1210 .0055 .0009 .0022 -.0003 .0012 .0001 O6 .0293 .3120 .6312 .0024 .0019 .0022 -.0001 .0016 .0004 O7 .1836 .1296 .1958 .0038 .0019 .0017 -.0002 .0006 -.0003 O8 .1900 .1231 .7017 .0041 .0022 .0016 .0008 .0012 .0003