K2CuSi4O10
Kawamura K, Iiyama J T
Bulletin de Mineralogie 104 (1981) 387-395
Crystallochemistry and thermochemistry of sodipotassic copper silicate Na2-2xK2xCuSi4O10
_database_code_amcsd 0012073
11.285 8.244 11.065 90 110.94 90 P2_1/m
atom     x     y     z Biso
K1   .0281   .25 .0295 1.61
K2   .0550   .25 .4432 1.00
K3   .4570   .25 .5239 1.36
K4   .4139   .25 .9171 1.21
Cu   .2120 .4969 .2886  .60
Si1  .2508 .5653 .0149  .54
Si2  .4643 .4410 .2288  .58
Si3  .2608 .5564 .5967  .53
Si4  .0896 .4406 .7492  .58
O1   .4630   .25 .1924 1.33
O2   .2709   .75 .5799 1.52
O3   .0659   .25 .7117 1.65
O4   .2346   .75 .9591  .97
O5   .4026 .5317 .0874  .78
O6   .1727 .5300 .1059 1.07
O7   .0319 .4681 .2483 1.08
O8   .3939 .4850 .3249 1.14
O9   .2477 .4609 .4689 1.00
O10  .1407 .5213 .6420 1.10
O11  .3884 .4981 .7162  .94
O12  .2066 .4452 .8891  .89