Ludwigite
Irwin M B, Peterson R C
The Canadian Mineralogist 37 (1999) 939-943
The crystal structure of ludwigite
Locality: Crestmore quarry, California, USA
_database_code_amcsd 0005628
CELL PARAMETERS: 9.2411 12.2948 3.0213 90.000 90.000 90.000
SPACE GROUP: Pbam
X-RAY WAVELENGTH: 1.541838
Cell Volume: 343.272
Density (g/cm3): 3.912
MAX. ABS. INTENSITY / VOLUME**2: 14.85191416
RIR: 1.236
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
11.98 12.06 7.3871 1 1 0 4
14.41 10.11 6.1474 0 2 0 2
17.33 100.00 5.1184 1 2 0 4
19.21 1.68 4.6206 2 0 0 2
29.05 3.21 3.0737 0 4 0 2
29.57 27.63 3.0213 0 0 1 2
29.90 11.29 2.9880 3 1 0 4
30.65 5.29 2.9166 1 4 0 4
32.00 8.96 2.7964 1 1 1 8
32.51 13.88 2.7540 3 2 0 4
33.04 7.15 2.7115 0 2 1 4
34.47 1.12 2.6018 1 2 1 8
35.06 87.75 2.5592 2 4 0 4
35.50 71.08 2.5287 2 0 1 4
36.27 1.41 2.4768 2 1 1 8
37.86 2.31 2.3763 1 5 0 4
38.27 7.63 2.3518 1 3 1 8
38.50 9.18 2.3386 2 2 1 8
38.99 7.11 2.3103 4 0 0 2
41.60 23.37 2.1707 2 5 0 4
41.77 1.29 2.1626 4 2 0 4
41.93 9.04 2.1547 0 4 1 4
41.98 5.72 2.1520 2 3 1 8
42.55 24.48 2.1245 3 1 1 8
44.52 57.20 2.0353 3 2 1 8
45.33 13.73 2.0005 1 6 0 4
46.50 14.96 1.9528 2 4 1 8
47.30 4.00 1.9217 3 5 0 4
47.64 25.44 1.9087 3 3 1 8
48.61 6.22 1.8732 2 6 0 4
48.75 1.37 1.8678 1 5 1 8
49.68 2.81 1.8352 4 0 1 4
51.64 7.99 1.7700 5 2 0 4
51.78 2.18 1.7656 3 4 1 8
51.86 1.64 1.7629 2 5 1 8
52.00 11.39 1.7585 4 2 1 8
53.07 1.17 1.7255 1 7 0 4
53.73 3.17 1.7061 3 6 0 4
55.06 9.51 1.6680 1 6 1 8
57.92 5.72 1.5920 2 6 1 8
58.58 24.51 1.5757 4 4 1 8
60.21 7.28 1.5368 0 8 0 2
60.64 16.35 1.5272 5 2 1 8
61.13 2.37 1.5160 1 8 0 4
61.37 24.64 1.5107 0 0 2 2
61.93 23.30 1.4984 1 7 1 8
62.52 7.57 1.4856 3 6 1 8
62.91 3.73 1.4774 5 5 0 4
63.19 17.07 1.4715 5 3 1 8
63.22 1.31 1.4708 4 5 1 8
64.29 5.21 1.4489 1 2 2 8
68.09 15.95 1.3770 6 4 0 4
68.35 1.04 1.3724 5 6 0 4
68.36 1.61 1.3722 6 0 1 4
68.50 4.78 1.3698 0 8 1 4
68.95 2.05 1.3620 3 7 1 8
69.35 3.26 1.3550 1 8 1 8
69.76 1.30 1.3481 3 1 2 8
70.29 1.18 1.3392 6 2 1 8
71.02 1.21 1.3272 5 5 1 8
71.19 2.66 1.3245 3 2 2 8
71.89 3.53 1.3133 2 8 1 8
72.40 1.34 1.3053 6 5 0 4
72.68 16.71 1.3009 2 4 2 8
73.35 2.94 1.2907 7 2 0 4
74.09 4.35 1.2796 4 8 0 4
75.14 2.80 1.2643 4 0 2 4
75.94 3.13 1.2530 6 4 1 8
76.19 1.44 1.2496 5 6 1 8
76.24 1.37 1.2488 3 9 0 4
76.89 3.71 1.2399 2 5 2 8
79.51 3.73 1.2056 1 6 2 8
79.64 1.93 1.2039 7 1 1 8
80.95 1.06 1.1876 3 5 2 8
81.73 2.19 1.1783 4 8 1 8
81.93 2.01 1.1759 2 6 2 8
83.73 5.44 1.1551 8 0 0 2
84.28 2.87 1.1490 5 2 2 8
84.93 1.32 1.1419 3 10 0 4
85.94 1.37 1.1310 3 6 2 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.