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: ZnAl2O4/1100, preferred values of spinel structure parameters Locality: synthetic _database_code_amcsd 0007850 CELL PARAMETERS: 8.0871 8.0871 8.0871 90.000 90.000 90.000 SPACE GROUP: Fd-3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 528.906 Density (g/cm3): 4.605 MAX. ABS. INTENSITY / VOLUME**2: 58.38555167 RIR: 4.128 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 19.01 5.01 4.6691 1 1 1 8 31.28 76.68 2.8592 2 2 0 12 36.86 100.00 2.4384 3 1 1 24 44.83 4.04 2.0218 4 0 0 6 49.10 9.67 1.8553 3 3 1 24 55.68 24.70 1.6508 4 2 2 24 59.38 4.52 1.5564 3 3 3 8 59.38 35.92 1.5564 5 1 1 24 65.27 44.23 1.4296 4 4 0 12 68.66 1.39 1.3670 5 3 1 48 74.16 8.75 1.2787 6 2 0 24 77.38 10.29 1.2333 5 3 3 24 85.81 1.34 1.1324 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.