Buddingtonite
Mookherjee M, Redfern S A T, Swainson I, Harlov D E
Physics and Chemistry of Minerals 31 (2004) 643-649
Low-temperature behaviour of ammonium ion in buddingtonite
[N(D/H)4AlSi3O8] from neutron powder diffraction
Sample: T = 210 K
_database_code_amcsd 0008920
8.81611 13.09609 7.20155 90 116.121 90 C2/m
atom     x      y     z occ    Uiso
N    .2949      0 .1473      .02367
D1   .4155  .0198 .2159  .5  .07414
D2   .2629 -.0317 .2497  .5  .07414
D3   .2765 -.0495 .0354  .5  .07414
D4   .2247  .0614 .0879  .5  .07414
Al1  .7062  .1176 .3456 .25 -.00168
Si1  .7062  .1176 .3456 .75 -.00168
Al2  .0213  .1931 .2373 .25  .00965
Si2  .0213  .1931 .2373 .75  .00965
O1       0  .1584     0     -.00129
O2   .6625      0 .2928     -.00129
O3   .8267  .1583 .2245     -.00129
O4   .0419  .3120 .2631     -.00129
O5   .1695  .1264 .4086     -.00129