Liebenbergite
Ottonello G, Della Giusta A, Molin G M
American Mineralogist 74 (1989) 411-421
Cation ordering in Ni-Mg olivines
sample Ni.63, heated to 800 C, then quenched
Mg.634Ni1.363SiO4
_database_code_amcsd 0001225
4.7345 10.1623 5.9317 90 90 90 Pbnm
atom     x     y     z occ Biso
Ni1      0     0     0 .88 0.34
Mg1      0     0     0 .12 0.34
Ni2  .9917 .2744   .25 .50 0.39
Mg2  .9917 .2744   .25 .50 0.39
Si   .4266 .0937   .25     0.35
O1   .7677 .0936   .25     0.37
O2   .2194 .4455   .25     0.41
O3   .2735 .1626 .0314     0.41