Apatite-(CaF) Rakovan J F, Hughes J M The Canadian Mineralogist 38 (2000) 839-845 Strontium in the apatite structure: Strontian fluorapatite and belovite-(Ce) _database_code_amcsd 0005689 9.416 9.416 6.924 90 90 120 P6_3/m atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Ca(1) 2/3 1/3 .0004 .9741 .842 .00341 .00341 .0037 .001705 0 0 Sr(1) 2/3 1/3 .0004 .0259 .842 .00341 .00341 .0037 .001705 0 0 Ca(2) .24967 .01007 1/4 .8229 .912 .00310 .00331 .00448 .001125 0 0 Sr(2) .24967 .01007 1/4 .1771 .912 .00310 .00331 .00448 .001125 0 0 P .02937 .63066 1/4 .66 .00208 .00230 .0041 .000905 0 0 O(1) .4849 .3278 1/4 1.16 .0044 .0053 .0068 .00355 0 0 O(2) .4129 .8794 1/4 1.30 .0027 .0037 .0111 .0014 0 0 O(3) .0836 .7422 .0721 1.50 .0053 .0043 .0061 .0004 -.00095 .0019 F 0 0 1/4 2.68 .0063 .0063 .025 .00315 0 0