Fayalite Fujino K, Sasaki S, Takeuchi Y, Sadanaga R Acta Crystallographica B37 (1981) 513-518 X-ray determination of electron distributions in forsterite, fayalite and tephroite Locality: synthetic _database_code_amcsd 0009731 4.8195 10.4788 6.0873 90 90 90 Pbnm atom x y z Biso Fe1 0 0 0 .520 Fe2 .98598 .28026 .25 .474 Si .43122 .09765 .25 .372 O1 .76814 .09217 .25 .510 O2 .20895 .45365 .25 .526 O3 .28897 .16563 .03643 .583