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 = 6.267 GPa _database_code_amcsd 0017769 5.3246 14.4558 5.5273 90 90 90 Pnma atom x y z occ Biso Ca .4832 .10832 .0238 .64 FeM 0 0 0 .93 .47 AlM 0 0 0 .07 .47 FeT .9470 .250 .9334 .70 .36 AlT .9470 .250 .9334 .30 .36 O1 .264 .9837 .2384 .63 O2 .0274 .1417 .0729 .64 O3 .606 .250 .871 .55