Hercynite
Lavina B, Princivalle F, Della Giusta A
Physics and Chemistry of Minerals 32 (2005) 83-88
Controlled time-temperature oxidation reaction in a synthetic Mg-hercynite
Spinel structure
Sample: Unannealed
_database_code_amcsd 0008938
8.1396 8.1396 8.1396 90 90 90 *Fd3m
.125 .125 .125
atom      x      y      z occ  Uiso
AlA    .125   .125   .125 .18 .0075
Fe2+A  .125   .125   .125 .62 .0075
Fe3+A  .125   .125   .125 .02 .0075
MgA    .125   .125   .125 .18 .0075
AlB      .5     .5     .5 .88 .0045
Fe2+B    .5     .5     .5 .04 .0045
Fe3+B    .5     .5     .5 .02 .0045
MgB      .5     .5     .5 .06 .0045
O    .26344 .26344 .26344     .0089