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 = 450 C _database_code_amcsd 0008813 CELL PARAMETERS: 8.1281 8.1281 8.1281 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 536.991 Density (g/cm3): 3.617 MAX. ABS. INTENSITY / VOLUME**2: 19.42445417 RIR: 1.749 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.91 33.19 4.6928 1 1 1 8 31.12 34.15 2.8737 2 2 0 12 36.67 100.00 2.4507 3 1 1 24 44.59 53.98 2.0320 4 0 0 6 55.38 8.97 1.6591 4 2 2 24 59.05 2.89 1.5643 3 3 3 8 59.05 43.26 1.5643 5 1 1 24 64.90 67.77 1.4369 4 4 0 12 68.27 3.08 1.3739 5 3 1 48 73.72 2.74 1.2852 6 2 0 24 76.92 9.74 1.2395 5 3 3 24 77.97 1.06 1.2254 6 2 2 24 82.16 5.91 1.1732 4 4 4 8 85.27 2.65 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.