Spinel Martignago F, Dal Negro A, Carbonin S Physics and Chemistry of Minerals 30 (2003) 401-408 How Cr3+ and Fe3+ affect Mg-Al order-disorder transformation at high temperature in natural spinels Sample: L-Fe, 3rd run, T = 650 C _database_code_amcsd 0008820 CELL PARAMETERS: 8.1440 8.1440 8.1440 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 540.149 Density (g/cm3): 3.549 MAX. ABS. INTENSITY / VOLUME**2: 18.72478716 RIR: 1.718 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.87 32.40 4.7019 1 1 1 8 31.06 33.59 2.8793 2 2 0 12 36.60 100.00 2.4555 3 1 1 24 44.50 53.22 2.0360 4 0 0 6 55.26 8.82 1.6624 4 2 2 24 58.93 3.00 1.5673 3 3 3 8 58.93 40.49 1.5673 5 1 1 24 64.75 64.63 1.4397 4 4 0 12 68.11 2.88 1.3766 5 3 1 48 73.55 2.58 1.2877 6 2 0 24 76.74 8.97 1.2419 5 3 3 24 77.79 1.01 1.2278 6 2 2 24 81.97 5.56 1.1755 4 4 4 8 85.07 2.32 1.1404 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.