Liebenbergite
Rajamani V, Brown G E, Prewitt C T
American Mineralogist 60 (1975) 292-299
Cation ordering in Ni-Mg olivine
_database_code_amcsd 0000455
4.7366 10.1716 5.9374 90 90 90 Pbnm
atom     x     y     z  occ Biso
Si   .4260 .0937   .25       .30
Ni1      0     0     0 .767  .26
Mg1      0     0     0 .233  .26
Ni2  .9907 .2750   .25 .263  .27
Mg2  .9907 .2750   .25 .737  .27
O1   .7672 .0931   .25       .44
O2   .2193 .4451   .25       .42
O3   .2755 .1625 .0316       .45