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 = 0.37 Note: P = 3.729 GPa _database_code_amcsd 0017768 5.3549 14.5410 5.5524 90 90 90 Pnma atom x y z occ Biso Ca .4920 .10822 .0239 .96 FeM 0 0 0 .93 .72 AlM 0 0 0 .07 .72 FeT .9491 .250 .9332 .70 .69 AlT .9491 .250 .9332 .30 .69 O1 .264 .9840 .2404 .91 O2 .026 .1426 .075 1.05 O3 .598 .250 .877 1.0