Maoniupingite-(Ce) Yang Z, Fleck M, Smith M, Tao K, Song R, Zhang P European Journal of Mineralogy 14 (2002) 969-975 The crystal structure of natural Fe-rich chevkinite-(Ce) _database_code_amcsd 0006951 13.456 5.728 11.083 90 100.60 90 C2/m atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) CeA1 .35619 0 .23436 .934 .0176 .0155 .0220 .0151 0 .0024 0 CaA1 .35619 0 .23436 .02 .0176 .0155 .0220 .0151 0 .0024 0 CeA2 .06965 0 .23967 .909 .0212 .0118 .0394 .0126 0 .0030 0 CaA2 .06965 0 .23967 .05 .0212 .0118 .0394 .0126 0 .0030 0 FeB .5 0 0 .55 .0188 .0235 .0206 .0120 0 .0021 0 MgB .5 0 0 .24 .0188 .0235 .0206 .0120 0 .0021 0 TiB .5 0 0 .18 .0188 .0235 .0206 .0120 0 .0021 0 FeC1 .25 .25 .5 .39 .0133 .0139 .0160 .0096 .0005 .0016 .0001 TiC1 .25 .25 .5 .55 .0133 .0139 .0160 .0096 .0005 .0016 .0001 NbC1 .25 .25 .5 .03 .0133 .0139 .0160 .0096 .0005 .0016 .0001 FeC2A .5 0 .5 .27 .0145 .0150 .0158 .0123 0 .0009 0 TiC2A .5 0 .5 .66 .0145 .0150 .0158 .0123 0 .0009 0 NbC2A .5 0 .5 .04 .0145 .0150 .0158 .0123 0 .0009 0 FeC2B 0 0 .5 .14 .0154 .0149 .0193 .0126 0 .0042 0 TiC2B 0 0 .5 .80 .0154 .0149 .0193 .0126 0 .0042 0 NbC2B 0 0 .5 .04 .0154 .0149 .0193 .0126 0 .0042 0 Si1 .2009 -.5 .2314 .0110 .0116 .0121 .0095 0 .0023 0 Si2 .3576 -.5 .0466 .0125 .0132 .0166 .0080 0 .0026 0 O1 .2281 .2650 .3145 .0169 .025 .014 .011 .002 .002 .001 O2 .4779 .2542 .3737 .0165 .015 .021 .015 -.003 .004 -.002 O3 .4261 .2723 .0935 .0258 .032 .026 .019 .012 .001 .002 O4 .1462 0 .4776 .0140 .012 .017 .014 0 .006 0 OH5 .3476 0 .4896 .32 .0147 .011 .015 .017 0 .000 0 O5 .3476 0 .4896 .68 .0147 .011 .015 .017 0 .000 0 OH6 .0849 -.5 .1718 .32 .033 .013 .066 .020 0 -.002 0 O6 .0849 -.5 .1718 .68 .033 .013 .066 .020 0 -.002 0 O7 .2706 -.5 .1287 .039 .031 .068 .024 0 .019 0 O8 .1868 0 .0965 .0177 .019 .022 .012 0 .002 0