Gahnite O'Neill H St C, Dollase W A Physics and Chemistry of Minerals 20 (1994) 541-555 Crystal structures and cation distributions in simple spinels from powder XRD structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence of the cation distribution in ZnAl2O4 Sample: ZnAl2O4/1200, preferred values of spinel structure parameters Locality: synthetic _database_code_amcsd 0007851 CELL PARAMETERS: 8.0976 8.0976 8.0976 90.000 90.000 90.000 SPACE GROUP: Fd-3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 530.969 Density (g/cm3): 4.587 MAX. ABS. INTENSITY / VOLUME**2: 58.19054076 RIR: 4.131 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.98 5.05 4.6752 1 1 1 8 31.24 76.56 2.8629 2 2 0 12 36.81 100.00 2.4415 3 1 1 24 44.77 4.06 2.0244 4 0 0 6 49.04 9.64 1.8577 3 3 1 24 55.60 24.72 1.6529 4 2 2 24 59.30 4.54 1.5584 3 3 3 8 59.30 35.86 1.5584 5 1 1 24 65.17 44.31 1.4315 4 4 0 12 68.56 1.40 1.3687 5 3 1 48 74.04 8.77 1.2803 6 2 0 24 77.26 10.29 1.2349 5 3 3 24 85.67 1.33 1.1339 7 1 1 24 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.