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 = 860 h _database_code_amcsd 0008950 CELL PARAMETERS: 8.1045 8.1045 8.1045 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 532.327 Density (g/cm3): 3.416 MAX. ABS. INTENSITY / VOLUME**2: 16.31110204 RIR: 1.555 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.97 24.89 4.6791 1 1 1 8 31.22 35.18 2.8654 2 2 0 12 36.78 100.00 2.4436 3 1 1 24 38.48 3.24 2.3396 2 2 2 8 44.73 57.88 2.0261 4 0 0 6 55.55 9.79 1.6543 4 2 2 24 59.24 40.40 1.5597 5 1 1 24 59.24 3.24 1.5597 3 3 3 8 65.11 72.16 1.4327 4 4 0 12 68.49 2.42 1.3699 5 3 1 48 73.97 3.10 1.2814 6 2 0 24 77.18 9.45 1.2359 5 3 3 24 82.45 6.51 1.1698 4 4 4 8 85.58 2.17 1.1349 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.