Liebenbergite
Chen J, Li R, Parise J B, Weidner D J
American Mineralogist 81 (1996) 1519-1522
Pressure-induced ordering in (Ni,Mg)2SiO4 olivine
Sample: Room pressure, 23 C, (800 C quenched)
_database_code_amcsd 0001846
4.7362 10.1682 5.9401 90 90 90 Pbnm
atom     x     y     z  occ Uiso
Ni1      0     0     0 .742 .015
Mg1      0     0     0 .258 .015
Ni2  .9898 .2752   .25 .258 .015
Mg2  .9898 .2752   .25 .742 .015
Si   .4256 .0932   .25      .017
O1   .7719 .0916   .25      .009
O2   .2208 .4447   .25      .009
O3   .2768 .1640 .0319      .009