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 = 1573 K on heating cycle, Mg.99Al2O4 _database_code_amcsd 0002178 CELL PARAMETERS: 8.1839 8.1839 8.1839 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 548.135 Density (g/cm3): 3.447 MAX. ABS. INTENSITY / VOLUME**2: 17.07947501 RIR: 1.613 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.78 27.28 4.7250 1 1 1 8 30.90 32.13 2.8935 2 2 0 12 36.41 100.00 2.4676 3 1 1 24 38.09 1.17 2.3625 2 2 2 8 44.27 54.15 2.0460 4 0 0 6 54.97 8.43 1.6705 4 2 2 24 58.61 3.37 1.5750 3 3 3 8 58.61 34.82 1.5750 5 1 1 24 64.40 60.98 1.4467 4 4 0 12 67.74 2.41 1.3833 5 3 1 48 73.13 2.46 1.2940 6 2 0 24 76.30 7.81 1.2480 5 3 3 24 81.48 5.19 1.1812 4 4 4 8 84.55 1.66 1.1460 5 5 1 24 89.65 3.23 1.0936 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.