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 = 400 C _database_code_amcsd 0008814 CELL PARAMETERS: 8.1243 8.1243 8.1243 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 536.238 Density (g/cm3): 3.575 MAX. ABS. INTENSITY / VOLUME**2: 19.00103955 RIR: 1.731 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.92 37.78 4.6906 1 1 1 8 31.14 32.91 2.8724 2 2 0 12 36.69 100.00 2.4496 3 1 1 24 44.61 56.45 2.0311 4 0 0 6 55.40 8.58 1.6584 4 2 2 24 59.08 2.82 1.5635 3 3 3 8 59.08 43.89 1.5635 5 1 1 24 64.93 68.77 1.4362 4 4 0 12 68.30 3.64 1.3733 5 3 1 48 73.76 2.48 1.2846 6 2 0 24 76.96 9.70 1.2389 5 3 3 24 78.02 1.18 1.2248 6 2 2 24 82.21 6.44 1.1726 4 4 4 8 85.32 3.05 1.1376 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.