Spinel Princivalle F, Martignago F, Dal Negro A American Mineralogist 91 (2006) 313-318 Kinetics of cation ordering in natural Mg(Al,Cr3+)2O4 spinels Locality: Olkhon metamorphic complex, Lake Baikal, Russia Sample: Sc, annealed at T = 650 C, disordering, t = 2520 m _database_code_amcsd 0004091 CELL PARAMETERS: 8.1174 8.1174 8.1174 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 534.873 Density (g/cm3): 3.675 MAX. ABS. INTENSITY / VOLUME**2: 20.97525996 RIR: 1.858 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.94 41.01 4.6866 1 1 1 8 31.16 29.15 2.8699 2 2 0 12 36.72 100.00 2.4475 3 1 1 24 44.65 55.67 2.0294 4 0 0 6 55.45 7.75 1.6570 4 2 2 24 59.14 3.13 1.5622 3 3 3 8 59.14 40.84 1.5622 5 1 1 24 64.99 64.77 1.4350 4 4 0 12 68.37 3.95 1.3721 5 3 1 48 73.83 2.30 1.2835 6 2 0 24 77.04 9.39 1.2379 5 3 3 24 78.10 1.73 1.2237 6 2 2 24 82.29 6.23 1.1716 4 4 4 8 85.41 2.83 1.1367 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.