Penkvilksite
Merlino S, Pasero M, Artioli G, Khomyakov A P
American Mineralogist 79 (1994) 1185-1193
Penkvilksite, a new kind of silicate structure: OD character, X-ray
single-crystal (1M), and powder Rietveld (2O) refinements of two MDO polytypes
Note: polytype 2O
_database_code_amcsd 0001688
CELL PARAMETERS: 16.3721 8.7492 7.4020 90.000 90.000 90.000
SPACE GROUP: Pnca
X-RAY WAVELENGTH: 1.541838
Cell Volume: 1060.283
Density (g/cm3): 2.647
MAX. ABS. INTENSITY / VOLUME**2: 7.494935166
RIR: 0.922
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
10.81 100.00 8.1861 2 0 0 2
14.82 27.72 5.9776 2 1 0 4
15.68 8.85 5.6510 0 1 1 4
16.60 40.71 5.3417 1 1 1 8
19.08 27.72 4.6505 2 1 1 8
20.30 9.34 4.3746 0 2 0 2
21.71 16.53 4.0930 4 0 0 2
22.65 12.28 3.9256 3 1 1 8
23.05 3.59 3.8582 2 2 0 4
24.00 2.52 3.7074 4 1 0 4
24.05 2.87 3.7010 0 0 2 2
24.66 6.30 3.6099 1 0 2 4
26.04 19.88 3.4214 2 2 1 8
26.43 47.28 3.3724 2 0 2 4
26.71 11.01 3.3370 1 1 2 8
26.90 44.98 3.3148 4 1 1 8
28.36 6.73 3.1467 2 1 2 8
28.80 29.60 3.0996 3 2 1 8
29.15 46.42 3.0631 3 0 2 4
31.58 33.20 2.8332 5 1 1 8
32.15 4.01 2.7843 1 2 2 8
32.59 6.93 2.7473 2 3 0 4
32.62 7.37 2.7452 4 0 2 4
32.82 1.52 2.7287 6 0 0 2
33.01 14.06 2.7134 0 3 1 4
33.48 32.98 2.6769 1 3 1 8
33.55 1.81 2.6709 2 2 2 8
34.23 1.78 2.6193 4 1 2 8
34.83 23.37 2.5756 2 3 1 8
35.79 9.35 2.5091 3 2 2 8
36.36 5.95 2.4710 5 2 1 8
36.57 18.25 2.4572 6 1 1 8
37.00 2.77 2.4296 3 3 1 8
37.89 1.74 2.3747 0 1 3 4
38.11 9.51 2.3614 5 1 2 8
38.30 3.56 2.3501 1 1 3 8
39.51 5.41 2.2807 2 1 3 8
39.73 4.39 2.2686 1 3 2 8
40.91 1.05 2.2059 2 3 2 8
41.27 8.47 2.1873 0 4 0 2
41.47 2.55 2.1775 3 1 3 8
42.79 2.16 2.1132 2 4 0 4
44.09 4.98 2.0540 4 1 3 8
44.26 2.03 2.0465 8 0 0 2
44.59 2.83 2.0320 2 4 1 8
45.35 2.43 1.9996 3 2 3 8
45.52 3.26 1.9927 8 1 0 4
45.66 4.81 1.9869 7 2 1 8
45.90 4.78 1.9772 7 0 2 4
46.25 1.14 1.9628 6 2 2 8
46.37 1.62 1.9580 3 4 1 8
47.11 2.23 1.9291 4 4 0 4
47.24 1.99 1.9242 8 1 1 8
47.24 1.04 1.9240 6 3 1 8
47.28 1.79 1.9224 5 1 3 8
48.66 1.12 1.8713 1 3 3 8
49.15 2.98 1.8537 8 2 0 4
49.68 5.87 1.8351 2 4 2 8
50.98 1.08 1.7913 6 1 3 8
50.99 5.73 1.7909 8 0 2 4
51.31 10.19 1.7806 3 3 3 8
51.59 3.65 1.7716 7 3 1 8
51.71 1.79 1.7677 2 1 4 8
52.13 1.64 1.7546 8 1 2 8
52.87 3.87 1.7316 9 1 1 8
53.31 3.55 1.7184 3 1 4 8
53.55 1.55 1.7112 2 5 0 4
53.56 7.32 1.7111 4 3 3 8
53.57 1.95 1.7107 4 4 2 8
53.71 3.55 1.7067 6 4 0 4
53.79 9.84 1.7043 0 2 4 4
54.41 2.41 1.6862 4 0 4 4
55.04 1.52 1.6685 2 2 4 8
55.08 1.20 1.6672 2 5 1 8
55.23 3.11 1.6630 6 4 1 8
55.44 1.43 1.6574 8 2 2 8
55.50 1.66 1.6557 4 1 4 8
56.21 1.08 1.6365 7 3 2 8
56.62 1.24 1.6256 3 5 1 8
57.26 2.03 1.6090 4 5 0 4
58.63 1.47 1.5746 1 5 2 8
58.72 3.14 1.5723 4 5 1 8
58.91 2.26 1.5678 3 4 3 8
59.52 2.35 1.5532 2 5 2 8
59.64 6.67 1.5502 6 3 3 8
59.66 1.36 1.5498 6 4 2 8
60.30 1.42 1.5348 2 3 4 8
60.45 6.26 1.5315 6 0 4 4
60.68 1.29 1.5261 8 3 2 8
61.98 6.98 1.4973 10 0 2 4
62.11 2.16 1.4944 8 4 0 4
64.04 2.51 1.4539 1 1 5 8
64.50 3.19 1.4447 6 5 1 8
64.89 2.05 1.4370 2 1 5 8
65.53 1.84 1.4244 5 5 2 8
65.94 3.62 1.4166 10 2 2 8
66.14 1.71 1.4127 0 4 4 4
66.50 1.63 1.4061 2 5 3 8
66.73 1.56 1.4018 10 3 1 8
67.61 1.42 1.3857 8 4 2 8
67.70 1.54 1.3839 3 6 1 8
68.21 1.24 1.3748 4 1 5 8
68.24 1.05 1.3743 9 4 1 8
68.81 1.40 1.3643 12 0 0 2
70.18 1.84 1.3410 7 4 3 8
70.85 2.33 1.3300 8 5 0 4
71.68 1.48 1.3166 3 6 2 8
72.19 1.15 1.3085 9 3 3 8
73.66 1.09 1.2861 6 6 0 4
75.37 2.11 1.2611 11 1 3 8
75.70 3.43 1.2564 2 5 4 8
75.70 2.13 1.2563 4 3 5 8
76.04 1.43 1.2516 8 5 2 8
77.21 2.00 1.2355 10 4 2 8
77.91 1.25 1.2262 10 0 4 4
78.78 1.62 1.2148 6 6 2 8
79.68 1.01 1.2033 3 0 6 4
80.25 1.86 1.1962 3 4 5 8
80.89 1.41 1.1883 6 3 5 8
81.33 1.52 1.1830 12 1 3 8
88.69 1.72 1.1030 4 6 4 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.