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 = 1639 K on heating cycle, Mg.99Al2O4 _database_code_amcsd 0002179 CELL PARAMETERS: 8.1896 8.1896 8.1896 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 549.275 Density (g/cm3): 3.440 MAX. ABS. INTENSITY / VOLUME**2: 16.88781009 RIR: 1.598 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.77 26.78 4.7283 1 1 1 8 30.88 32.16 2.8955 2 2 0 12 36.38 100.00 2.4693 3 1 1 24 38.06 1.21 2.3641 2 2 2 8 44.24 53.74 2.0474 4 0 0 6 54.92 8.38 1.6717 4 2 2 24 58.57 3.36 1.5761 3 3 3 8 58.57 33.95 1.5761 5 1 1 24 64.35 59.71 1.4477 4 4 0 12 67.68 2.27 1.3843 5 3 1 48 73.08 2.43 1.2949 6 2 0 24 76.24 7.55 1.2489 5 3 3 24 81.41 4.96 1.1821 4 4 4 8 84.48 1.53 1.1468 5 5 1 24 89.57 3.10 1.0944 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.