Shortite Dickens B, Hyman A, Brown W E Journal of Research of the National Bureau of Standards - Physics and Chemistry 75A (1971) 129-135 Crystal structure of Ca2Na2(CO3)3 (shortite) Note: Y- and z-coordinates of Ca adjusted to match reported bond lengths _database_code_amcsd 0013288 4.947 11.032 7.108 90 90 90 Amm2 atom x y z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Ca .5 .2165 .9960 .008232 .006079 .007346 0 0 -.000127 Na1 0 0 .9263 .016085 .012285 .019504 0 0 0 Na2 .5 0 .6122 .014565 .008739 .014565 0 0 .000000 C1 0 .2961 .1697 .007219 .010639 .008106 0 0 -.000507 O1 0 .1985 .0742 .013678 .017098 .018238 0 0 -.010259 O2 .2261 .3456 .2152 .007472 .012918 .013678 0 0 -.000253 C2 .5 0 .2253 .013932 .007346 .008106 0 0 0 O3 .5 0 .0415 .021531 .007599 .007726 0 0 0 O4 .5 .1013 .3111 .026597 .007219 .012538 0 0 -.002913