Corundum
Ishizawa N, Miyata T, Minato I, Marumo F, Iwai S
Acta Crystallographica B36 (1980) 228-230
A structural investigation of alpha-Al2O3 at 2170 K
T = 2170 K
_database_code_amcsd 0009700
4.844 4.844 13.27 90 90 120 R-3c
atom    x y     z Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Al      0 0 .3533 2.25  .0299  .0299  .0255 .01495      0      0
O    .307 0   .25 2.22  .0282  .0290  .0275  .0145  .0023  .0046