Rankamaite
Atencio D, Contreira R R, Mills S J, Coutinho J M V,
Honorato S B, Ayala A P, Ellena J, De Andrade M B
American Mineralogist 96 (2011) 1455-1460
Rankamaite from the Urubu pegmatite, Itinga, Minas Gerais,
Brazil: Crystal chemistry and Rietveld refinement
Note: Identification of OH not reported
Locality: Urubu pegmatite, Itinga, Minas Gerais, Brazil
_database_code_amcsd 0018556
CELL PARAMETERS: 17.2240 17.6870 3.9361 90.000 90.000 90.000
SPACE GROUP: C222
X-RAY WAVELENGTH: 1.541838
Cell Volume: 1199.097
Density (g/cm3): 6.593
MAX. ABS. INTENSITY / VOLUME**2: 120.7323062
RIR: 5.963
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
10.00 13.49 8.8435 0 2 0 2
10.27 3.48 8.6120 2 0 0 2
14.36 4.11 6.1698 2 2 0 4
15.89 1.20 5.5779 1 3 0 4
16.23 10.10 5.4608 3 1 0 4
20.08 15.99 4.4218 0 4 0 2
20.63 4.27 4.3060 4 0 0 2
21.61 18.05 4.1132 3 3 0 4
22.59 100.00 3.9361 0 0 1 2
22.60 7.84 3.9336 2 4 0 4
22.97 5.81 3.8715 4 2 0 4
24.76 4.02 3.5960 0 2 1 4
24.87 1.51 3.5799 2 0 1 4
25.71 22.18 3.4651 1 5 0 4
26.36 22.29 3.3813 5 1 0 4
26.87 2.43 3.3183 2 2 1 4
27.94 8.26 3.1931 3 1 1 4
28.94 3.07 3.0849 4 4 0 4
29.66 26.35 3.0117 3 5 0 4
30.04 45.53 2.9743 5 3 0 4
30.32 8.53 2.9478 0 6 0 2
30.40 12.51 2.9400 0 4 1 4
30.78 2.74 2.9052 4 0 1 4
31.16 7.22 2.8707 6 0 0 2
31.46 13.93 2.8438 3 3 1 4
32.09 15.15 2.7890 2 6 0 4
32.17 6.18 2.7823 2 4 1 4
32.44 4.50 2.7601 4 2 1 4
32.80 2.37 2.7304 6 2 0 4
34.48 12.33 2.6009 1 5 1 4
34.98 14.15 2.5648 5 1 1 4
37.02 1.17 2.4280 4 4 1 4
37.35 1.62 2.4078 6 4 0 4
37.61 11.75 2.3918 3 5 1 4
37.92 29.16 2.3730 5 3 1 4
38.14 4.71 2.3595 0 6 1 4
38.83 3.34 2.3194 6 0 1 4
39.60 8.81 2.2756 2 6 1 4
39.69 2.64 2.2707 7 3 0 4
41.96 1.66 2.1530 8 0 0 2
42.20 2.87 2.1414 2 8 0 4
43.25 4.09 2.0919 8 2 0 4
44.09 1.59 2.0539 6 4 1 4
46.12 21.30 1.9681 0 0 2 2
46.15 2.45 1.9669 7 3 1 4
46.15 2.61 1.9668 4 8 0 4
46.94 2.05 1.9357 8 4 0 4
47.15 1.92 1.9276 0 8 1 4
47.80 4.16 1.9027 9 1 0 4
48.18 1.12 1.8889 8 0 1 4
48.39 2.16 1.8811 2 8 1 4
48.99 14.73 1.8593 3 9 0 4
49.21 1.08 1.8515 3 1 2 4
49.33 2.97 1.8472 8 2 1 4
50.11 1.75 1.8203 9 3 0 4
50.78 2.38 1.7980 0 4 2 4
51.47 2.99 1.7753 3 3 2 4
51.68 2.19 1.7687 0 10 0 2
51.95 1.39 1.7601 2 4 2 4
51.98 2.02 1.7594 4 8 1 4
52.13 1.10 1.7544 4 2 2 4
52.22 2.12 1.7516 6 8 0 4
52.64 10.62 1.7386 8 6 0 4
52.69 1.73 1.7370 8 4 1 4
53.18 3.92 1.7224 10 0 0 2
53.49 5.25 1.7130 9 1 1 4
53.55 4.55 1.7113 1 5 2 4
53.70 1.25 1.7070 5 9 0 4
53.90 4.89 1.7009 5 1 2 4
54.59 16.17 1.6812 3 9 1 4
55.63 1.13 1.6522 9 3 1 4
55.80 7.03 1.6475 3 5 2 4
56.03 12.75 1.6413 5 3 2 4
56.20 2.25 1.6368 0 6 2 4
56.71 2.04 1.6232 6 0 2 4
57.09 1.95 1.6133 0 10 1 4
57.30 4.71 1.6080 2 6 2 4
57.60 1.74 1.6003 6 8 1 4
57.99 11.26 1.5904 8 6 1 4
58.49 4.62 1.5779 10 0 1 4
58.98 1.18 1.5661 5 9 1 4
59.97 3.02 1.5425 8 8 0 4
61.25 1.49 1.5134 11 3 0 4
61.59 1.54 1.5058 6 10 0 4
62.45 2.12 1.4872 10 6 0 4
63.07 1.21 1.4739 0 12 0 2
63.89 2.28 1.4570 5 11 0 4
64.28 1.20 1.4490 2 8 2 4
64.93 3.54 1.4361 8 8 1 4
65.07 1.77 1.4334 8 2 2 4
65.15 1.29 1.4318 11 5 0 4
66.15 1.37 1.4125 11 3 1 4
66.48 1.11 1.4064 6 10 1 4
67.30 1.24 1.3912 4 8 2 4
67.30 2.09 1.3912 10 6 1 4
67.92 1.01 1.3801 8 4 2 4
68.61 2.18 1.3679 9 1 2 4
68.69 2.63 1.3664 5 11 1 4
69.56 7.92 1.3515 3 9 2 4
69.91 1.52 1.3456 11 5 1 4
71.75 1.25 1.3155 0 10 2 4
71.97 2.57 1.3120 0 0 3 2
72.20 1.21 1.3084 6 8 2 4
72.55 6.32 1.3030 8 6 2 4
73.00 2.36 1.2961 10 0 2 4
73.22 1.34 1.2927 13 3 0 4
75.21 1.20 1.2634 0 14 0 2
77.76 1.46 1.2281 13 3 1 4
78.84 2.13 1.2140 8 8 2 4
79.57 1.04 1.2047 5 13 1 4
79.71 1.51 1.2029 0 14 1 4
79.72 1.05 1.2028 3 5 3 4
79.91 2.39 1.2004 5 3 3 4
79.97 1.08 1.1997 11 3 2 4
80.28 1.07 1.1959 6 10 2 4
81.04 1.55 1.1865 10 6 2 4
81.31 1.14 1.1833 13 5 1 4
82.01 1.05 1.1749 9 11 1 4
82.35 1.77 1.1710 5 11 2 4
83.49 1.01 1.1578 11 5 2 4
87.43 1.19 1.1156 5 15 0 4
89.13 1.50 1.0986 13 9 0 4
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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.