Cu2 K2 Mg3 O30 Si12 Nguyen N, Choisnet J, Raveau B Journal of Solid State Chemistry 34 (1980) 1-9 Silicates synthetiques a structure milarite _cod_database_code 1001136 _database_code_amcsd 0013395 10.169 10.169 14.182 90 90 120 P6/mcc atom x y z occ K1 0 0 .25 K2 1/3 2/3 0 .5 Mg1 1/3 2/3 .25 .875 Mg2 .5 0 .25 .4167 Cu1 1/3 2/3 .25 .125 Cu2 .5 0 .25 .5833 Si1 .764 .11 .11 O1 .747 .131 0 O2 .931 .212 .14 O3 .662 .157 .165