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 = 8.167 GPa _database_code_amcsd 0017764 5.3246 14.4819 5.5110 90 90 90 Pnma atom x y z Biso Ca .4802 .1088 .0217 .60 FeM 0 0 0 .28 FeT .9455 .250 .9353 .42 O1 .2617 .9836 .2380 .36 O2 .0266 .1414 .0761 .72 O3 .5916 .250 .8756 .61