Liebenbergite
Ottonello G, Della Giusta A, Molin G M
American Mineralogist 74 (1989) 411-421
Cation ordering in Ni-Mg olivines
sample Ni.51, synthesized at 890 C, then quenched
MgNiSiO4
_database_code_amcsd 0001221
4.7392 10.1939 5.9432 90 90 90 Pbnm
atom     x     y     z  occ Biso
Ni1      0     0     0 .788 0.51
Mg1      0     0     0 .212 0.51
Ni2  .9901 .2751   .25 .246 0.59
Mg2  .9901 .2751   .25 .754 0.59
Si   .4252 .0936   .25      0.47
O1   .7670 .0929   .25      0.59
O2   .2186 .4455   .25      0.54
O3   .2762 .1627 .0324      0.59