Srebrodolskite Redhammer G J, Tippelt G, Roth G, Amthauer G American Mineralogist 89 (2004) 405-420 Structural variations in the brownmillerite series Ca2(Fe2-xAlx)O5: Single-crystal X-ray diffraction at 25 deg C and high temperature X-ray powder diffraction (25 C <= T <= 1000 C) Sample: bht030_3 Locality: synthetic _database_code_amcsd 0003429 5.4027 14.6779 5.5923 90 90 90 Pnma atom x y z occ Uiso Ca .48378 .10821 .02456 .0089 FeM 0 0 0 .932 .0060 AlM 0 0 0 .068 .0060 FeT .94757 .25 .93200 .703 .0046 AlT .94757 .25 .93200 .297 .0046 O1 .2596 .9849 .2404 .0084 O2 .0227 .1419 .0719 .0109 O3 .6034 .25 .8698 .0099