Emeleusite Johnsen O, Nielsen K, Sotofte I Zeitschrift fur Kristallographie 147 (1978) 297-306 The crystal structure of emeleusite, a novel example of sechser-doppelkette Locality: Igdlutalik Island, Julianchab District, Greenland _database_code_amcsd 0010800 10.072 17.337 14.004 90 90 90 Acam atom x y z Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Na1 .2516 .4145 .5 .017 .025 .066 -.002 0 0 Na2 .25 .2243 .25 .042 .012 .028 0 -.021 0 Li 0 0 .2518 .005 Fe3+ .25 .4137 .25 .012 .008 .009 0 0 0 Si1 .4867 .1322 .6137 .0039 Si2 .1923 .0716 .6140 .0037 Si3 .4579 .3107 .6140 .005 O1 -.0032 .2230 .1385 .013 O2 .4123 .4203 .1702 .009 O3 .3340 .1116 .3606 .014 O4 .3371 .4944 .3306 .009 O5 .0861 .1379 .3570 .009 O6 .1757 .3332 .1664 .011 O7 .5136 .1209 .5 .015 O8 .1885 .0535 .5 .015 O9 .4319 .3205 .5 .015