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 = 1080 K on heating cycle, Mg.99Al2O4 _database_code_amcsd 0002170 CELL PARAMETERS: 8.1428 8.1428 8.1428 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 539.914 Density (g/cm3): 3.500 MAX. ABS. INTENSITY / VOLUME**2: 17.82738025 RIR: 1.659 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.88 30.51 4.7013 1 1 1 8 31.06 32.70 2.8789 2 2 0 12 36.60 100.00 2.4552 3 1 1 24 38.29 1.21 2.3506 2 2 2 8 44.51 56.14 2.0357 4 0 0 6 55.27 8.80 1.6621 4 2 2 24 58.94 3.17 1.5671 3 3 3 8 58.94 39.42 1.5671 5 1 1 24 64.76 67.01 1.4395 4 4 0 12 68.13 2.90 1.3764 5 3 1 48 73.56 2.62 1.2875 6 2 0 24 76.75 8.91 1.2418 5 3 3 24 81.98 6.10 1.1753 4 4 4 8 85.08 2.29 1.1402 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.