Aenigmatite Cannillo E, Mazzi F, Fang J H, Robinson P D, Ohya Y American Mineralogist 56 (1971) 427-446 The crystal structure of aenigmatite sample CM _database_code_amcsd 0000224 10.406 10.813 8.926 104.93 96.87 125.32 P-1 atom x y z Biso Fe1 0 0 .5 .89 Fe2 0 .5 0 .85 Fe3 .3193 .8513 .1779 .91 Fe4 .7670 .8203 .1517 .68 Fe5 .0952 .9382 .0522 .98 Fe6 .5962 .9435 .0662 .82 Ti1 .9970 .7428 .2565 .62 Na1 .2092 .6289 .3893 1.33 Na2 .6627 .6127 .3733 1.42 Si1 .4798 .2333 .3311 .82 Si2 .9879 .2363 .3456 .68 Si3 .7925 .3435 .2424 .84 Si4 .2782 .3364 .2257 .86 Si5 .6478 .9448 .4450 .76 Si6 .3525 .5573 .0501 .78 O1 .3600 .0684 .1630 1.02 O2 .8640 .0688 .1800 1.41 O3 .5488 .9535 .2957 1.20 O4 .0087 .9233 .2648 1.19 O5 .2364 .8751 .3951 1.19 O6 .7523 .8821 .3912 1.10 O7 .4967 .1947 .4965 1.00 O8 .9603 .7756 .4843 .98 O9 .9069 .3300 .3717 1.44 O10 .4091 .3408 .3539 .75 O11 .6710 .1773 .0749 1.44 O12 .1565 .1694 .0646 1.02 O13 .5197 .7094 .0365 1.04 O14 .0671 .7334 .0776 .78 O15 .2453 .6098 .1152 1.51 O16 .7572 .6022 .1230 1.39 O17 .4040 .4995 .1882 1.01 O18 .9370 .5164 .2269 1.15 O19 .1708 .3661 .3271 .91 O20 .6749 .3640 .3422 .93