Hercynite Lavina B, Princivalle F, Della Giusta A Physics and Chemistry of Minerals 32 (2005) 83-88 Controlled time-temperature oxidation reaction in a synthetic Mg-hercynite Spinel structure Sample: Annealing temperature and time T = 600 C, t = 452 h _database_code_amcsd 0008948 CELL PARAMETERS: 8.1172 8.1172 8.1172 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 534.834 Density (g/cm3): 3.614 MAX. ABS. INTENSITY / VOLUME**2: 21.28329407 RIR: 1.918 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.94 12.45 4.6865 1 1 1 8 31.17 42.58 2.8699 2 2 0 12 36.72 100.00 2.4474 3 1 1 24 38.42 1.56 2.3432 2 2 2 8 44.65 40.02 2.0293 4 0 0 6 55.46 11.96 1.6569 4 2 2 24 59.14 39.64 1.5622 5 1 1 24 59.14 3.40 1.5622 3 3 3 8 64.99 64.00 1.4349 4 4 0 12 68.37 1.14 1.3721 5 3 1 48 73.84 3.81 1.2834 6 2 0 24 77.04 9.56 1.2379 5 3 3 24 82.29 4.48 1.1716 4 4 4 8 85.41 1.47 1.1366 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.