Fayalite Hazen R M American Mineralogist 62 (1977) 286-295 Effects of temperature and pressure on the crystal structure of ferromagnesian olivine T = 900 deg C,P = 1 atm Locality: Franklin, New Jersey, USA _database_code_amcsd 0000573 4.838 10.490 6.136 90 90 90 Pbnm atom x y z occ Biso Fe1 0 0 0 .562 2.37 Mg1 0 0 0 .361 2.37 Mn1 0 0 0 .077 2.37 Fe2 .9940 .2799 .25 .538 1.69 Mg2 .9940 .2799 .25 .389 1.69 Mn2 .9940 .2799 .25 .073 1.69 Si .4450 .0959 .25 1.06 O1 .8140 .0882 .25 2.64 O2 .2100 .4503 .25 .89 O3 .2800 .1615 .0447 1.84