Swedenborgite Huminicki D M C, Hawthorne F C The Canadian Mineralogist 39 (2001) 153-158 Refinement of the crystal structure of swedenborgite _database_code_amcsd 0005708 5.4317 5.4317 8.8571 90 90 120 P6_3mc atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Sb 1/3 2/3 0 .0033 .0033 .0032 .0017 0 0 Na 1/3 2/3 .6245 .89 .0154 .0154 .0152 .0077 0 0 Ca 1/3 2/3 .6245 .04 .0154 .0154 .0152 .0077 0 0 Be1 0 0 .0629 .0035 .0035 .0044 .0017 0 0 Be2 .1664 .8336 .3126 .0047 .0047 .0059 .0019 .0009 -.0009 O1 0 0 .3728 .0056 .0056 .0056 .0028 0 0 O2 .4961 .5039 .3706 .0046 .0046 .0080 .0020 -.0023 .0023 O3 .1616 .8384 .1269 .0077 .0077 .0049 .0060 -.0002 .0002