Columbite-(Mn) Tarantino S C, Zema M American Mineralogist 90 (2005) 1291-1300 Mixing and ordering behavior in manganocolumbite-ferrocolumbite solid solution: A single-crystal X-ray diffraction study Sample: KRA n4 Qm=0.817 from Kragero, Norway Sample: Annealed at T = 600 C for t = 67 h Note: Occupancies calculated assuming complete Fe/Mn disorder _database_code_amcsd 0003863 CELL PARAMETERS: 14.3520 5.7400 5.0930 90.000 90.000 90.000 SPACE GROUP: Pbcn X-RAY WAVELENGTH: 1.541838 Cell Volume: 419.564 Density (g/cm3): 5.476 MAX. ABS. INTENSITY / VOLUME**2: 123.2789335 RIR: 7.330 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 12.33 4.07 7.1760 2 0 0 2 16.63 1.32 5.3296 1 1 0 4 24.17 4.97 3.6821 1 1 1 8 24.22 25.63 3.6750 3 1 0 4 24.81 2.50 3.5880 4 0 0 2 29.98 100.00 2.9801 3 1 1 8 31.16 9.24 2.8700 0 2 0 2 35.24 12.89 2.5465 0 0 2 2 35.92 13.88 2.5003 0 2 1 4 37.60 6.85 2.3920 6 0 0 2 40.11 2.72 2.2479 3 0 2 4 40.72 5.10 2.2159 3 2 1 8 43.22 7.46 2.0931 3 1 2 8 47.75 6.89 1.9048 0 2 2 4 49.61 6.35 1.8375 6 2 0 4 50.55 1.04 1.8054 7 1 1 8 51.44 12.77 1.7765 3 3 0 4 52.49 15.90 1.7435 6 0 2 4 52.98 20.14 1.7284 6 2 1 8 54.72 1.16 1.6774 3 3 1 8 60.03 12.87 1.5412 3 1 3 8 62.31 4.77 1.4901 6 2 2 8 63.21 10.99 1.4710 9 1 1 8 63.69 7.05 1.4612 0 2 3 4 63.89 11.52 1.4570 3 3 2 8 67.85 5.20 1.3812 0 4 1 4 71.75 1.95 1.3156 9 1 2 8 74.53 1.42 1.2732 0 0 4 2 76.38 1.96 1.2469 6 2 3 8 78.00 2.78 1.2250 9 3 0 4 79.70 1.09 1.2031 3 1 4 8 80.26 5.38 1.1961 6 4 1 8 80.27 2.15 1.1960 12 0 0 2 82.96 1.05 1.1639 0 2 4 4 85.18 3.50 1.1392 9 1 3 8 86.61 2.89 1.1239 6 0 4 4 87.35 1.37 1.1163 3 5 0 4 88.59 4.58 1.1039 9 3 2 8 89.41 1.88 1.0959 0 4 3 4 89.98 1.77 1.0904 3 5 1 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.