Fayalite Hazen R M American Mineralogist 62 (1977) 286-295 Effects of temperature and pressure on the crystal structure of ferromagnesian olivine T = 23 deg C, P = 1 atm, in P-cell Locality: synthetic _database_code_amcsd 0000566 4.818 10.470 6.086 90 90 90 Pbnm atom x y z Biso Fe1 0 0 0 .27 Fe2 .985 .279 .25 .27 Si .426 .095 .25 .03 O1 .772 .098 .25 .00 O2 .216 .450 .25 -.10 O3 .281 .164 .042 .20