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, 1st run, T = 200 C _database_code_amcsd 0008811 CELL PARAMETERS: 8.1092 8.1092 8.1092 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 533.254 Density (g/cm3): 3.593 MAX. ABS. INTENSITY / VOLUME**2: 19.36631925 RIR: 1.755 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.96 37.32 4.6818 1 1 1 8 31.20 32.74 2.8670 2 2 0 12 36.76 100.00 2.4450 3 1 1 24 44.70 57.25 2.0273 4 0 0 6 55.52 8.73 1.6553 4 2 2 24 59.21 2.86 1.5606 3 3 3 8 59.21 44.88 1.5606 5 1 1 24 65.07 71.25 1.4335 4 4 0 12 68.45 3.76 1.3707 5 3 1 48 73.92 2.58 1.2822 6 2 0 24 77.13 10.11 1.2366 5 3 3 24 78.19 1.13 1.2225 6 2 2 24 82.39 6.88 1.1705 4 4 4 8 85.52 3.26 1.1355 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.