Spinel Meducin F, Redfern S A T, Le Godec Y, Stone H J, Tucker M G, Dove M T, Marshall W G American Mineralogist 89 (2004) 981-986 Study of cation order-disorder in MgAl2O4 spinel by in situ neutron diffraction up to 1600 K and 3.2 GPa Sample at T = 757 K and P = 0.4 GPa, inversion parameter x = .292 _database_code_amcsd 0003571 CELL PARAMETERS: 8.0874 8.0874 8.0874 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 528.965 Density (g/cm3): 3.572 MAX. ABS. INTENSITY / VOLUME**2: 16.90658342 RIR: 1.541 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 19.01 32.02 4.6693 1 1 1 8 31.28 35.55 2.8593 2 2 0 12 36.86 100.00 2.4384 3 1 1 24 38.56 3.25 2.3346 2 2 2 8 44.83 58.92 2.0219 4 0 0 6 55.68 9.14 1.6508 4 2 2 24 59.38 2.27 1.5564 3 3 3 8 59.38 39.60 1.5564 5 1 1 24 65.26 68.17 1.4297 4 4 0 12 68.66 1.92 1.3670 5 3 1 48 74.15 2.57 1.2787 6 2 0 24 77.38 7.39 1.2333 5 3 3 24 82.66 5.78 1.1673 4 4 4 8 85.80 2.09 1.1325 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.