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 = 636 K on heating cycle, Mg.99Al2O4 _database_code_amcsd 0002164 CELL PARAMETERS: 8.1136 8.1136 8.1136 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 534.120 Density (g/cm3): 3.538 MAX. ABS. INTENSITY / VOLUME**2: 18.57257619 RIR: 1.709 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.94 30.66 4.6844 1 1 1 8 31.18 32.69 2.8686 2 2 0 12 36.74 100.00 2.4463 3 1 1 24 38.43 1.18 2.3422 2 2 2 8 44.68 56.51 2.0284 4 0 0 6 55.48 9.21 1.6562 4 2 2 24 59.17 3.26 1.5615 3 3 3 8 59.17 41.69 1.5615 5 1 1 24 65.03 70.88 1.4343 4 4 0 12 68.41 3.03 1.3714 5 3 1 48 73.87 2.88 1.2829 6 2 0 24 77.08 9.81 1.2373 5 3 3 24 82.34 6.63 1.1711 4 4 4 8 85.46 2.56 1.1361 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.