Tachyhydrite
Clark J R, Evans H T, Erd R C
Acta Crystallographica B36 (1980) 2736-2739
Tachyhydrite, dimagnesium calcium chloride 12-hydrate
Locality: synthetic
_database_code_amcsd 0009720
10.136 10.136 17.318 90 90 120 R-3
atom      x      y       z U(1,1) U(2,2) U(3,3)  U(1,2)  U(1,3)  U(2,3)
Ca        0      0       0  .0310  .0310  .0338   .0155       0       0
Cl    .1780 -.0688   .0926  .0476  .0465  .0423   .0299  -.0044  -.0036
Mg        0      0   .3243  .0302  .0302  .0334   .0151       0       0
O1    .1882  .0700   .2548   .038   .052   .042    .016    .006    .000
O2   -.1897 -.0628   .3920   .045   .050   .060    .023    .016    .004
H1      .18    .04    .206
H2      .27    .18    .263
H3     -.20    .02    .416
H4     -.23   -.16    .417