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 ISIS, Rutherford Appleton Laboratory, U.K. T = 1673 K on heating cycle, MgAl2O4 _database_code_amcsd 0002156 CELL PARAMETERS: 8.1980 8.1980 8.1980 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 550.973 Density (g/cm3): 3.430 MAX. ABS. INTENSITY / VOLUME**2: 16.13687531 RIR: 1.532 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.75 29.34 4.7331 1 1 1 8 30.85 32.65 2.8984 2 2 0 12 36.35 100.00 2.4718 3 1 1 24 38.02 1.09 2.3666 2 2 2 8 44.19 53.44 2.0495 4 0 0 6 54.86 7.82 1.6734 4 2 2 24 58.50 3.06 1.5777 3 3 3 8 58.50 33.03 1.5777 5 1 1 24 64.28 55.77 1.4492 4 4 0 12 67.60 2.38 1.3857 5 3 1 48 72.99 2.08 1.2962 6 2 0 24 76.14 6.83 1.2502 5 3 3 24 81.31 4.52 1.1833 4 4 4 8 84.37 1.52 1.1480 5 5 1 24 89.45 2.59 1.0955 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.