Hematite
Pauling L, Hendricks S B
Journal of the American Chemical Society 47 (1925) 781-790
Crystal structures of hematite and corundum
Locality: natural
_database_code_amcsd 0014076
5.420 5.420 5.420 55.28 55.28 55.28 R-3c
atom    x     y    z
Fe   .355  .355 .355
O    .542 -.042  .25