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: Ch, annealed at T = 650 C, disordering, t = 3960 m _database_code_amcsd 0004064 CELL PARAMETERS: 8.0889 8.0889 8.0889 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 529.259 Density (g/cm3): 3.579 MAX. ABS. INTENSITY / VOLUME**2: 18.53043091 RIR: 1.686 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 19.00 36.08 4.6701 1 1 1 8 31.28 33.65 2.8599 2 2 0 12 36.85 100.00 2.4389 3 1 1 24 44.82 55.70 2.0222 4 0 0 6 55.67 8.79 1.6511 4 2 2 24 59.37 2.88 1.5567 3 3 3 8 59.37 43.36 1.5567 5 1 1 24 65.25 67.85 1.4299 4 4 0 12 68.64 3.38 1.3673 5 3 1 48 74.14 2.57 1.2790 6 2 0 24 77.36 9.65 1.2335 5 3 3 24 78.42 1.23 1.2194 6 2 2 24 82.65 6.13 1.1675 4 4 4 8 85.78 2.82 1.1327 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.