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=0.960 from Kragero, Norway
Sample: Annealed at T = 800 C for t = 15 m
Note: Occupancies calculated assuming complete Fe/Mn disorder
_database_code_amcsd 0003866
CELL PARAMETERS: 14.3800 5.7500 5.0840 90.000 90.000 90.000
SPACE GROUP: Pbcn
X-RAY WAVELENGTH: 1.541838
Cell Volume: 420.371
Density (g/cm3): 5.466
MAX. ABS. INTENSITY / VOLUME**2: 125.1049953
RIR: 7.453
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
12.31 5.84 7.1900 2 0 0 2
16.60 1.84 5.3390 1 1 0 4
24.17 24.88 3.6818 3 1 0 4
24.17 7.17 3.6818 1 1 1 8
24.77 3.62 3.5950 4 0 0 2
29.97 100.00 2.9820 3 1 1 8
31.11 9.55 2.8750 0 2 0 2
35.31 12.87 2.5420 0 0 2 2
35.88 13.44 2.5026 0 2 1 4
37.53 6.84 2.3967 6 0 0 2
40.15 2.77 2.2457 3 0 2 4
40.67 5.07 2.2184 3 2 1 8
43.25 7.21 2.0919 3 1 2 8
44.09 1.39 2.0539 4 2 1 8
47.76 7.16 1.9044 0 2 2 4
49.51 6.59 1.8409 6 2 0 4
50.48 1.57 1.8081 7 1 1 8
51.34 12.86 1.7797 3 3 0 4
52.47 15.92 1.7438 6 0 2 4
52.90 20.17 1.7309 6 2 1 8
54.64 1.37 1.6797 3 3 1 8
60.10 13.09 1.5394 3 1 3 8
62.27 5.02 1.4910 6 2 2 8
63.10 11.26 1.4734 9 1 1 8
63.75 7.07 1.4599 0 2 3 4
63.85 11.74 1.4579 3 3 2 8
67.74 5.45 1.3833 0 4 1 4
71.67 1.98 1.3168 9 1 2 8
74.68 1.44 1.2710 0 0 4 2
76.39 1.98 1.2468 6 2 3 8
77.83 2.89 1.2273 9 3 0 4
79.83 1.11 1.2014 3 1 4 8
80.08 2.22 1.1983 12 0 0 2
80.10 5.74 1.1980 6 4 1 8
83.08 1.12 1.1625 0 2 4 4
85.15 3.68 1.1395 9 1 3 8
86.72 3.05 1.1229 6 0 4 4
87.16 1.53 1.1183 3 5 0 4
88.46 4.77 1.1052 9 3 2 8
89.38 2.03 1.0962 0 4 3 4
89.80 1.75 1.0922 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.