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=1 from Kragero, Norway
Sample: Annealed at T = 800 C for t = 24 h
Note: Occupancies calculated assuming complete Fe/Mn disorder
_database_code_amcsd 0003867
CELL PARAMETERS: 14.3950 5.7530 5.0830 90.000 90.000 90.000
SPACE GROUP: Pbcn
X-RAY WAVELENGTH: 1.541838
Cell Volume: 420.946
Density (g/cm3): 5.462
MAX. ABS. INTENSITY / VOLUME**2: 125.5338985
RIR: 7.484
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
12.30 7.12 7.1975 2 0 0 2
16.59 2.18 5.3422 1 1 0 4
24.15 24.70 3.6849 3 1 0 4
24.17 8.55 3.6824 1 1 1 8
24.74 4.26 3.5988 4 0 0 2
29.95 100.00 2.9834 3 1 1 8
31.09 9.56 2.8765 0 2 0 2
35.32 12.78 2.5415 0 0 2 2
35.87 13.36 2.5034 0 2 1 4
37.49 6.85 2.3992 6 0 0 2
40.15 2.76 2.2459 3 0 2 4
40.65 5.05 2.2195 3 2 1 8
43.24 7.12 2.0921 3 1 2 8
44.06 1.63 2.0551 4 2 1 8
47.75 7.23 1.9046 0 2 2 4
49.47 6.68 1.8424 6 2 0 4
50.43 1.86 1.8096 7 1 1 8
51.31 12.82 1.7807 3 3 0 4
52.45 15.91 1.7446 6 0 2 4
52.85 20.05 1.7322 6 2 1 8
54.61 1.43 1.6806 3 3 1 8
60.10 13.08 1.5394 3 1 3 8
62.24 5.05 1.4917 6 2 2 8
63.03 11.26 1.4747 9 1 1 8
63.75 7.03 1.4599 0 2 3 4
63.82 11.73 1.4584 3 3 2 8
67.70 5.49 1.3839 0 4 1 4
71.61 1.97 1.3177 9 1 2 8
74.70 1.45 1.2708 0 0 4 2
76.36 1.96 1.2472 6 2 3 8
77.75 2.89 1.2283 9 3 0 4
79.84 1.11 1.2013 3 1 4 8
79.98 2.22 1.1996 12 0 0 2
80.05 5.77 1.1988 6 4 1 8
83.09 1.13 1.1624 0 2 4 4
85.10 3.69 1.1400 9 1 3 8
86.71 3.04 1.1230 6 0 4 4
87.10 1.56 1.1189 3 5 0 4
88.39 4.77 1.1059 9 3 2 8
89.35 2.03 1.0965 0 4 3 4
89.74 1.73 1.0927 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.