Dingdaohengite-(Ce) Li G, Yang G, Ma Z, Shi N, Xiong M, Sheng G, Fan H Kuangwu Xuebao 25 (2005) 313-320 The crystal structure of a new mineral dingdaohengite-(Ce) Locality: Bayun Obo, Inner Mongolia, China _database_code_amcsd 0014199 13.4656 5.7356 11.0977 90 100.636 90 C2/m atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) CeA1 .43028 .5 .76027 .525 .014 .036 .015 0 .003 0 LaA1 .43028 .5 .76027 .365 .014 .036 .015 0 .003 0 CaA1 .43028 .5 .76027 .110 .014 .036 .015 0 .003 0 CeA2 .14385 .5 .76556 .525 .018 .018 .018 0 .003 0 LaA2 .14385 .5 .76556 .365 .018 .018 .018 0 .003 0 CaA2 .14385 .5 .76556 .110 .018 .018 .018 0 .003 0 FeB 0 .5 .5 .017 .014 .014 0 .000 0 TiC1 .25 .25 .5 .44 .016 .013 .013 .000 .002 .000 Fe2+C1 .25 .25 .5 .23 .016 .013 .013 .000 .002 .000 MgC1 .25 .25 .5 .20 .016 .013 .013 .000 .002 .000 Fe3+C1 .25 .25 .5 .13 .016 .013 .013 .000 .002 .000 TiC2A .5 .5 .5 .99 .016 .014 .014 0 .004 0 NbC2A .5 .5 .5 .01 .016 .014 .014 0 .004 0 TiC2B .5 0 0 .97 .026 .015 .012 0 .004 0 NbC2B .5 0 0 .03 .026 .015 .012 0 .004 0 Si1 .29921 0 .76857 .017 .011 .014 0 .003 0 Si2 .35775 .5 .04647 .018 .015 .013 0 .003 0 O1 .5224 .7449 .6266 .017 .021 .019 .004 .005 .003 O2 .4259 .2715 .0939 .033 .028 .023 .012 0 .003 O3 .2720 .2341 .6853 .030 .014 .015 .001 .004 .001 O4 .3543 .5 .5226 .017 .016 .018 0 .005 0 O5 .3138 .5 .9033 .026 .018 .016 0 .003 0 O6 .1521 .5 .5108 .018 .014 .020 0 .004 0 O7 .2297 0 .8713 .040 .065 .027 0 .019 0 O8 .4152 0 .8281 .020 .062 .024 0 .001 0