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-Cr, 2nd run, T = 450 C _database_code_amcsd 0008772 CELL PARAMETERS: 8.1217 8.1217 8.1217 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 535.724 Density (g/cm3): 3.571 MAX. ABS. INTENSITY / VOLUME**2: 18.67078474 RIR: 1.703 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.93 38.61 4.6891 1 1 1 8 31.15 32.93 2.8715 2 2 0 12 36.70 100.00 2.4488 3 1 1 24 44.63 57.35 2.0304 4 0 0 6 55.42 8.47 1.6578 4 2 2 24 59.11 2.73 1.5630 3 3 3 8 59.11 43.85 1.5630 5 1 1 24 64.95 68.84 1.4357 4 4 0 12 68.33 3.67 1.3728 5 3 1 48 73.79 2.41 1.2842 6 2 0 24 76.99 9.52 1.2385 5 3 3 24 78.05 1.04 1.2244 6 2 2 24 82.24 6.49 1.1723 4 4 4 8 85.35 3.10 1.1373 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.