Brownmillerite
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: bht070_1
Locality: synthetic
_database_code_amcsd 0003435
5.3714 14.5805 5.5847 90 90 90 I2mb
atom     x     y     z  occ  Uiso
Ca   .4911 .1083 .0265      .0066
FeM  .0006     0     0 .851 .0032
AlM  .0006     0     0 .149 .0032
FeT  .9528   .25 .9296 .486 .0016
AlT  .9528   .25 .9296 .514 .0016
O1   .2501 .9860 .2530      .0064
O2   .0240 .1429 .0697      .0097
O3   .6106   .25 .8652      .0084