Citation: McCauley, J.W.; Gibbs, G.V. (1972). Redetermination of the chromium position in ruby. Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (-144,1977), 135, pp. 453-455.
Formula: Al1.896 Cr0.104 O3
Chemical name: (Al.948 Cr.052)2 O3
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al12 Cr12 O18 (Al2 Cr2 O3)
Multiplicity: 1