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, ordering, t = 960 m _database_code_amcsd 0004074 CELL PARAMETERS: 8.0882 8.0882 8.0882 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 529.122 Density (g/cm3): 3.577 MAX. ABS. INTENSITY / VOLUME**2: 18.64300428 RIR: 1.697 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 19.00 33.62 4.6697 1 1 1 8 31.28 33.22 2.8596 2 2 0 12 36.86 100.00 2.4387 3 1 1 24 44.82 55.48 2.0220 4 0 0 6 55.67 8.90 1.6510 4 2 2 24 59.37 3.03 1.5566 3 3 3 8 59.37 42.14 1.5566 5 1 1 24 65.26 67.85 1.4298 4 4 0 12 68.65 3.16 1.3672 5 3 1 48 74.14 2.67 1.2789 6 2 0 24 77.37 9.55 1.2334 5 3 3 24 78.43 1.09 1.2193 6 2 2 24 82.65 6.11 1.1674 4 4 4 8 85.79 2.60 1.1326 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.