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: M-Cr, 3rd run, T = 1000 C _database_code_amcsd 0008794 CELL PARAMETERS: 8.1733 8.1733 8.1733 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 546.000 Density (g/cm3): 3.543 MAX. ABS. INTENSITY / VOLUME**2: 18.54363084 RIR: 1.704 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.81 34.55 4.7189 1 1 1 8 30.95 30.61 2.8897 2 2 0 12 36.46 100.00 2.4643 3 1 1 24 44.33 54.21 2.0433 4 0 0 6 55.04 7.92 1.6684 4 2 2 24 58.70 3.14 1.5730 3 3 3 8 58.70 36.45 1.5730 5 1 1 24 64.49 60.20 1.4448 4 4 0 12 67.84 2.88 1.3815 5 3 1 48 73.25 2.29 1.2923 6 2 0 24 76.41 7.99 1.2464 5 3 3 24 81.61 5.19 1.1797 4 4 4 8 84.69 1.95 1.1445 5 5 1 24 89.79 3.35 1.0922 6 4 2 48 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.