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=0.844 from Kragero, Norway
Sample: Annealed at T = 600 C for t = 177 h
Note: Occupancies calculated assuming complete Fe/Mn disorder
_database_code_amcsd 0003864
CELL PARAMETERS: 14.3520 5.7400 5.0900 90.000 90.000 90.000
SPACE GROUP: Pbcn
X-RAY WAVELENGTH: 1.541838
Cell Volume: 419.317
Density (g/cm3): 5.476
MAX. ABS. INTENSITY / VOLUME**2: 123.0189653
RIR: 7.314
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
12.33 4.28 7.1760 2 0 0 2
16.63 1.37 5.3296 1 1 0 4
24.18 5.25 3.6810 1 1 1 8
24.22 25.63 3.6750 3 1 0 4
24.81 2.62 3.5880 4 0 0 2
29.99 100.00 2.9795 3 1 1 8
31.16 9.31 2.8700 0 2 0 2
35.27 12.93 2.5450 0 0 2 2
35.92 13.75 2.5000 0 2 1 4
37.60 6.85 2.3920 6 0 0 2
40.13 2.73 2.2468 3 0 2 4
40.72 5.08 2.2157 3 2 1 8
43.24 7.39 2.0923 3 1 2 8
44.15 1.03 2.0512 4 2 1 8
47.76 6.91 1.9042 0 2 2 4
49.61 6.37 1.8375 6 2 0 4
50.56 1.10 1.8053 7 1 1 8
51.44 12.73 1.7765 3 3 0 4
52.50 15.79 1.7430 6 0 2 4
52.98 20.03 1.7283 6 2 1 8
54.73 1.20 1.6773 3 3 1 8
60.06 12.83 1.5404 3 1 3 8
62.33 4.78 1.4898 6 2 2 8
63.22 10.96 1.4709 9 1 1 8
63.72 6.98 1.4605 0 2 3 4
63.90 11.44 1.4567 3 3 2 8
67.86 5.19 1.3812 0 4 1 4
71.76 1.93 1.3154 9 1 2 8
74.58 1.40 1.2725 0 0 4 2
76.41 1.94 1.2465 6 2 3 8
78.00 2.74 1.2250 9 3 0 4
79.75 1.08 1.2025 3 1 4 8
80.26 5.35 1.1961 6 4 1 8
80.27 2.12 1.1960 12 0 0 2
83.01 1.05 1.1633 0 2 4 4
85.20 3.46 1.1389 9 1 3 8
86.66 2.87 1.1234 6 0 4 4
87.35 1.37 1.1163 3 5 0 4
88.60 4.53 1.1038 9 3 2 8
89.43 1.87 1.0957 0 4 3 4
89.98 1.73 1.0904 3 5 1 8
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XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.