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 = 848 K on heating cycle, Mg.99Al2O4 _database_code_amcsd 0002167 CELL PARAMETERS: 8.1282 8.1282 8.1282 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 537.003 Density (g/cm3): 3.519 MAX. ABS. INTENSITY / VOLUME**2: 18.20732558 RIR: 1.685 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.91 30.81 4.6928 1 1 1 8 31.12 33.00 2.8737 2 2 0 12 36.67 100.00 2.4507 3 1 1 24 38.36 1.30 2.3464 2 2 2 8 44.59 56.38 2.0320 4 0 0 6 55.37 9.18 1.6592 4 2 2 24 59.05 3.16 1.5643 3 3 3 8 59.05 41.14 1.5643 5 1 1 24 64.90 69.70 1.4369 4 4 0 12 68.27 2.85 1.3739 5 3 1 48 73.72 2.84 1.2852 6 2 0 24 76.92 9.43 1.2395 5 3 3 24 82.16 6.33 1.1732 4 4 4 8 85.27 2.41 1.1382 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.