Hercynite Lavina B, Cesare B, Alvarez-Valero A M, Uchida H, Downs R T, Koneva A, Dera P American Mineralogist 94 (2009) 657-665 Closure temperatures of intracrystalline ordering in anatectic and metamorphic hercynite, Fe2+Al2O4 Note: Sample AVHz20 Locality: El Hoyazo, lavas of the Neogene Volcanic Province of SE Spain _database_code_amcsd 0004919 CELL PARAMETERS: 8.1517 8.1517 8.1517 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 541.682 Density (g/cm3): 4.097 MAX. ABS. INTENSITY / VOLUME**2: 36.92990000 RIR: 2.935 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 31.03 60.75 2.8821 2 2 0 12 36.56 100.00 2.4578 3 1 1 24 44.46 14.68 2.0379 4 0 0 6 48.69 4.36 1.8701 3 3 1 24 55.20 17.37 1.6640 4 2 2 24 58.87 3.76 1.5688 3 3 3 8 58.87 37.49 1.5688 5 1 1 24 64.68 49.59 1.4410 4 4 0 12 73.47 5.62 1.2889 6 2 0 24 76.65 9.61 1.2431 5 3 3 24 81.87 1.47 1.1766 4 4 4 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.