Spinel Nestola F, Boffa Ballaran T, Balic-Zunic T, Princivalle F, Secco L, Dal Negro A American Mineralogist 92 (2007) 1838-1843 Comparative compressibility and structural behavior of spinel MgAl2O4 at high pressures: the independency on the degree of cation order Locality: Sri Lanka Sample: P = 2.924 GPa, disordered _database_code_amcsd 0004473 8.0451 8.0451 8.0451 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso MgA .125 .125 .125 .73 .0056 AlA .125 .125 .125 .27 .0056 AlB .5 .5 .5 .865 .0063 MgB .5 .5 .5 .135 .0063 O .2614 .2614 .2614 .0094