Olivine Miyake M, Nakamura H, Kojima H, Marumo F American Mineralogist 72 (1987) 594-598 Cation ordering in Co-Mg olivine solid-solution series Sample: Co18 _database_code_amcsd 0001090 4.780 10.290 5.997 90 90 90 Pbnm atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Co1 0 0 0 .928 .0036 .0076 .0072 -.0001 -.0006 -.0011 Mg1 0 0 0 .072 .0036 .0076 .0072 -.0001 -.0006 -.0011 Co2 .9911 .2765 .25 .807 .0050 .0060 .0081 -.0001 0 0 Mg2 .9911 .2765 .25 .193 .0050 .0060 .0081 -.0001 0 0 Si .4277 .0948 .25 .0027 .0058 .0072 .0002 0 0 O1 .7665 .0921 .25 .0037 .0096 .0088 -.0003 0 0 O2 .2154 .4483 .25 .0053 .0056 .0104 .0003 0 0 O3 .2816 .1641 .0337 .0069 .0088 .0080 .0004 -.0005 .0015