Rhodesite
Hesse K F, Liebau F, Merlino S
Zeitschrift fur Kristallographie 199 (1992) 25-48
Crystal structure of rhodesite, HK1-xNax+2yCa2-y{lB,3,2}[Si8O19]*(6-z)H2O,
from three localities and its relation to other silicates with dreier double layers
Locality: Zeilberg, Germany
_database_code_amcsd 0011013
23.416 6.555 7.050 90 90 90 Pmam
atom      x     y     z  occ Uiso
K       .25 .4449     0 .249 .032
Ca1       0    .5     0 .253 .014
Ca2       0    .5    .5 .251 .011
Si1   .1168 .2895 .2196      .008
Si2   .1838 .5410    .5   .5 .006
Si3   .1023 .9309    .5   .5 .007
O1    .0590 .4074 .2476      .016
O2    .1717 .4089 .3130      .016
O3    .1167 .0627 .3131      .024
O4    .1351 .2550     0   .5 .010
O5    .1458 .7427    .5   .5 .021
O6    .0378 .8527    .5   .5 .029
O7      .25 .6076    .5  .25 .014
Wat8  .0381 .8379     0 .546 .092
Wat9  .3308 .7780     0 .451 .075
Wat10   .25 .0211 .1901 .236 .080