Ekatite
Keller P
European Journal of Mineralogy 13 (2001) 769-777
Ekatite, (Fe3+,Fe2+,Zn)12(OH)6[AsO3]6[AsO3,HOSiO3]2, a new mineral
from Tsumeb, Namibia, and its crystal structure
Locality: Tsumeb, Namibia
_database_code_amcsd 0006895
CELL PARAMETERS: 12.7730 12.7730 5.0510 90.000 90.000 120.000
SPACE GROUP: P6_3mc
X-RAY WAVELENGTH: 1.541838
Cell Volume: 713.664
Density (g/cm3): 3.053
MAX. ABS. INTENSITY / VOLUME**2: 26.02884516
RIR: 2.776
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
7.99 100.00 11.0617 1 0 0 6
13.87 30.02 6.3865 1 1 0 6
19.32 22.01 4.5947 1 0 1 6
23.86 19.00 3.7297 2 0 1 6
24.14 10.30 3.6872 3 0 0 6
27.70 71.58 3.2207 2 1 1 12
27.94 11.91 3.1932 2 2 0 6
30.00 3.30 2.9781 3 0 1 6
32.37 17.13 2.7654 4 0 0 6
34.20 10.24 2.6222 3 1 1 12
35.55 4.56 2.5255 0 0 2 1
37.06 31.65 2.4257 4 0 1 6
37.25 5.67 2.4139 4 1 0 12
38.33 9.48 2.3485 1 1 2 6
39.21 2.68 2.2973 2 0 2 6
39.75 8.44 2.2676 3 2 1 12
40.79 2.73 2.2123 5 0 0 6
41.46 6.07 2.1779 4 1 1 12
41.79 1.38 2.1617 2 1 2 12
43.43 5.33 2.0836 3 0 2 6
45.81 2.54 1.9809 2 2 2 6
46.58 1.00 1.9498 3 1 2 12
47.05 8.37 1.9316 4 2 1 12
48.84 5.54 1.8649 4 0 2 6
49.29 6.91 1.8489 5 1 1 12
50.16 2.02 1.8185 4 3 0 12
51.02 20.16 1.7901 3 2 2 12
51.60 1.03 1.7713 5 2 0 12
52.44 1.51 1.7450 4 1 2 12
52.86 2.80 1.7319 6 0 1 6
53.56 3.11 1.7110 4 3 1 12
54.39 1.43 1.6869 6 1 0 12
54.93 7.19 1.6715 5 2 1 12
55.18 1.38 1.6645 1 0 3 6
55.19 1.13 1.6641 5 0 2 6
56.54 3.91 1.6277 3 3 2 6
57.61 4.14 1.6000 6 1 1 12
57.74 7.84 1.5966 4 4 0 6
58.40 3.18 1.5802 5 3 0 12
59.16 4.04 1.5618 2 1 3 12
61.48 5.37 1.5082 5 3 1 12
62.36 1.24 1.4891 6 0 2 6
62.97 4.84 1.4760 3 1 3 12
63.37 2.22 1.4678 6 2 1 12
63.49 4.45 1.4652 7 1 0 12
64.23 8.17 1.4502 5 2 2 12
64.83 13.00 1.4381 4 0 3 6
66.68 3.49 1.4028 6 1 2 12
68.85 1.15 1.3637 5 4 1 12
69.67 3.05 1.3495 4 4 2 6
70.04 1.13 1.3434 6 3 1 12
70.25 1.12 1.3398 5 0 3 6
70.27 1.74 1.3396 7 0 2 6
70.63 3.11 1.3336 8 0 1 6
72.39 5.34 1.3055 7 2 1 12
74.25 2.57 1.2773 5 5 0 6
75.25 1.20 1.2628 0 0 4 1
75.86 1.52 1.2541 8 1 1 12
78.37 1.36 1.2202 6 3 2 12
83.99 1.49 1.1522 5 3 3 12
84.31 1.30 1.1487 4 0 4 6
85.68 2.08 1.1338 6 4 2 12
85.99 1.09 1.1305 3 2 4 12
87.10 1.37 1.1189 4 1 4 12
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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.