Spinel Redfern S A T, Harrison R J, O'Neill H St C, Wood D R R American Mineralogist 84 (1999) 299-310 Thermodynamics and kinetics of cation ordering in MgAl2O4 spinel up to 1600 C from in situ neutron diffraction Data collected at IPNS, Argonne National Laboratory, T = 1441 K on heating cycle, Mg.99Al2O4 _database_code_amcsd 0002176 CELL PARAMETERS: 8.1731 8.1731 8.1731 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 545.952 Density (g/cm3): 3.461 MAX. ABS. INTENSITY / VOLUME**2: 17.20749117 RIR: 1.619 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.81 28.01 4.7187 1 1 1 8 30.95 32.30 2.8896 2 2 0 12 36.46 100.00 2.4643 3 1 1 24 38.14 1.22 2.3594 2 2 2 8 44.33 54.69 2.0433 4 0 0 6 55.04 8.50 1.6683 4 2 2 24 58.70 35.73 1.5729 5 1 1 24 58.70 3.30 1.5729 3 3 3 8 64.50 62.22 1.4448 4 4 0 12 67.84 2.50 1.3815 5 3 1 48 73.25 2.48 1.2923 6 2 0 24 76.42 7.98 1.2464 5 3 3 24 81.61 5.37 1.1797 4 4 4 8 84.69 1.78 1.1445 5 5 1 24 89.80 3.38 1.0922 6 4 2 48 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.