Fayalite Smyth J R American Mineralogist 60 (1975) 1092-1097 High temperature crystal chemistry of fayalite T = 20 deg C olivine _database_code_amcsd 0000480 4.818 10.471 6.086 90 90 90 Pbnm atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Fe1 0 0 0 .0035 .0019 .0035 .0002 -.0006 -.0004 Fe2 .9853 .2800 .25 .0045 .0013 .0034 0 0 0 Si .4292 .0975 .25 .0019 .0012 .0034 .0002 0 0 O1 .7687 .0928 .25 .0026 .0014 .0049 .0014 0 0 O2 .2076 .4529 .25 .0006 .0018 .0029 -.0006 0 0 O3 .2884 .1637 .0383 .0035 .0011 .0045 -.0003 -.0005 .0007