Hellandite-(Y) Mellini M, Merlino S American Mineralogist 62 (1977) 89-99 Hellandite: a new type of silicoborate chain _database_code_amcsd 0000557 18.990 4.715 10.300 90 111.4 90 P2/a atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Al1 0 0 0 .550 .00089 .01771 .00325 -.00017 .00090 .00002 Fe1 0 0 0 .450 .00089 .01771 .00325 -.00017 .00090 .00002 Y2 .04179 .01879 .35996 .870 .00063 .01333 .00239 -.00032 .00075 -.00033 Ca3 .24771 .00225 .65957 .752 .00065 .01238 .00230 .00008 .00064 -.00007 Y3 .24771 .00225 .65957 .108 .00065 .01238 .00230 .00008 .00064 -.00007 Ca4 .15428 -.03944 .92862 .556 .00049 .01466 .00329 .00044 .00089 .00109 Y4 .15428 -.03944 .92862 .333 .00049 .01466 .00329 .00044 .00089 .00109 Si1 .09990 .48510 .64680 .00079 .01387 .00336 .00021 .00098 .00053 Si2 .11120 .49660 .16160 .00081 .01727 .00382 .00043 .00093 .00093 B1 .17080 .53440 .45100 0.25 B2 .25440 .45270 .13750 0.18 H .04700 .04000 .92000 4.00 O1 .04080 .24360 .56350 .00107 .01531 .00310 -.00033 .00060 -.00251 O2 .17570 .31270 .75560 .00075 .01770 .00453 .00051 .00030 -.00042 O3 .06980 -.30030 .73570 .00094 .02167 .00461 .00124 .00093 -.00157 O4 .13120 -.32680 .54040 .00129 .01478 .00452 .00011 .00173 .00169 O5 .03730 .19260 .86690 .00096 .01723 .00375 .00053 .00110 .00064 O6 .24570 -.23450 .86050 .00111 .01463 .00432 .00073 .00100 -.00041 O7 .16650 .22190 .44750 .00092 .01406 .00326 .00041 .00065 .00086 O8 .13030 .67440 .30850 .00202 .01670 .00298 .00105 .00039 -.00174 O9 .18720 .32810 .16330 .00099 .01891 .00927 .00171 .00234 .00517 O10 .08480 .72860 .03880 .00086 .02265 .00364 .00107 .00036 .00284 O11 .05260 .24840 .15760 .00118 .02047 .00307 -.00143 .00084 .00161 O12 .25 .32670 0 .00190 .01741 .00373 0 .00037 0 O13 .25 .65150 .5 .00082 .01336 .00549 0 .00037 0