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 AVMa8.9 Locality: El Hoyazo, lavas of the Neogene Volcanic Province of SE Spain _database_code_amcsd 0004918 CELL PARAMETERS: 8.1511 8.1511 8.1511 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 541.563 Density (g/cm3): 4.122 MAX. ABS. INTENSITY / VOLUME**2: 37.54550287 RIR: 2.966 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 31.03 59.74 2.8818 2 2 0 12 36.56 100.00 2.4576 3 1 1 24 44.46 14.82 2.0378 4 0 0 6 48.69 4.06 1.8700 3 3 1 24 55.21 17.12 1.6638 4 2 2 24 58.87 3.81 1.5687 3 3 3 8 58.87 37.11 1.5687 5 1 1 24 64.69 49.26 1.4409 4 4 0 12 73.48 5.56 1.2888 6 2 0 24 76.66 9.56 1.2430 5 3 3 24 81.88 1.48 1.1765 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.