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 = 984 K on heating cycle, Mg.99Al2O4 _database_code_amcsd 0002169 CELL PARAMETERS: 8.1380 8.1380 8.1380 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 538.958 Density (g/cm3): 3.506 MAX. ABS. INTENSITY / VOLUME**2: 17.99739205 RIR: 1.671 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.89 30.83 4.6985 1 1 1 8 31.08 32.74 2.8772 2 2 0 12 36.62 100.00 2.4537 3 1 1 24 38.31 1.18 2.3492 2 2 2 8 44.53 56.17 2.0345 4 0 0 6 55.30 8.91 1.6612 4 2 2 24 58.98 3.18 1.5662 3 3 3 8 58.98 40.17 1.5662 5 1 1 24 64.81 67.98 1.4386 4 4 0 12 68.17 2.94 1.3756 5 3 1 48 73.62 2.69 1.2867 6 2 0 24 76.81 9.17 1.2410 5 3 3 24 82.04 6.21 1.1746 4 4 4 8 85.14 2.37 1.1395 5 5 1 24 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.