Srebrodolskite Vanpeteghem C B, Angel R J, Zhao J, Ross N L, Redhammer G J, Seifert F Physics and Chemistry of Minerals 35 (2008) 493-504 The effect of oxygen vacancies and aluminium substitution on the high-pressure properties of brownmillerite-structured Ca2Fe2-xAlxO5 Locality: synthetic Note: x = 0.0 Note: P = 3.863 GPa _database_code_amcsd 0017761 5.3744 14.6175 5.5526 90 90 90 Pnma atom x y z Biso Ca .4808 .1080 .0223 .66 FeM 0 0 0 .36 FeT .9459 .250 .9349 .44 O1 .2621 .9850 .2372 .49 O2 .0250 .1397 .0734 .89 O3 .5955 .250 .8746 .66