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 = 600 C _database_code_amcsd 0008819 CELL PARAMETERS: 8.1403 8.1403 8.1403 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 539.413 Density (g/cm3): 3.554 MAX. ABS. INTENSITY / VOLUME**2: 18.69598053 RIR: 1.713 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.88 34.77 4.6998 1 1 1 8 31.07 33.50 2.8780 2 2 0 12 36.61 100.00 2.4544 3 1 1 24 44.52 54.43 2.0351 4 0 0 6 55.28 8.70 1.6616 4 2 2 24 58.96 2.88 1.5666 3 3 3 8 58.96 41.73 1.5666 5 1 1 24 64.79 65.80 1.4390 4 4 0 12 68.15 3.13 1.3760 5 3 1 48 73.59 2.51 1.2871 6 2 0 24 76.78 9.13 1.2414 5 3 3 24 77.83 1.03 1.2272 6 2 2 24 82.01 5.81 1.1750 4 4 4 8 85.11 2.57 1.1399 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.