Khatyrkite Meetsma A, de Boer J L, van Smaalen S Journal of Solid State Chemistry 83 (1989) 370-372 Refinement of the crystal structure of tetragonal Al2Cu Locality: synthetic _database_code_amcsd 0013668 6.067 6.067 4.877 90 90 90 I4/mcm atom x y z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Cu 0 0 .25 .0087 .0087 .0062 0 0 0 Al .1581 .6581 0 .0104 .0104 .0109 -.0021 0 0