Nacrite
Zheng H, Bailey S W
Clays and Clay Minerals 42 (1994) 46-52
Refinement of the nacrite structure
Locality: Red Mountain near Silverton, Colorado, USA
_database_code_amcsd 0012238
CELL PARAMETERS: 8.9060 5.1460 15.6640 90.000 113.580 90.000
SPACE GROUP: Cc
X-RAY WAVELENGTH: 1.541838
Cell Volume: 657.944
Density (g/cm3): 2.606
MAX. ABS. INTENSITY / VOLUME**2: 8.604639561
RIR: 1.075
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
12.33 100.00 7.1780 0 0 2 1
20.01 33.06 4.4369 -1 1 1 2
20.28 41.68 4.3796 -2 0 2 1
20.40 29.47 4.3531 1 1 0 2
21.50 49.47 4.1336 -1 1 2 2
21.78 4.15 4.0812 2 0 0 1
22.57 9.16 3.9390 1 1 1 2
24.53 8.19 3.6284 -1 1 3 2
24.81 61.86 3.5890 0 0 4 1
25.67 15.80 3.4700 -2 0 4 1
26.11 16.19 3.4132 1 1 2 2
28.66 6.32 3.1145 -1 1 4 2
29.18 16.76 3.0606 2 0 2 1
30.57 5.61 2.9245 1 1 3 2
33.52 1.25 2.6732 -1 1 5 2
34.87 1.51 2.5730 0 2 0 2
34.90 4.68 2.5709 -3 1 2 2
35.08 1.10 2.5584 -2 0 6 1
35.35 2.12 2.5394 -3 1 3 2
35.44 9.00 2.5326 0 2 1 2
35.60 2.56 2.5220 -3 1 1 2
35.66 5.71 2.5180 1 1 4 2
36.90 31.05 2.4358 -3 1 4 2
37.12 24.64 2.4221 0 2 2 2
37.39 31.69 2.4053 3 1 0 2
37.59 6.54 2.3927 0 0 6 1
38.89 3.58 2.3157 -1 1 6 2
39.46 3.96 2.2837 -3 1 5 2
39.78 2.90 2.2662 0 2 3 2
40.14 5.40 2.2463 3 1 1 2
41.49 1.01 2.1765 2 2 0 2
42.86 3.24 2.1099 -3 1 6 2
43.27 6.85 2.0911 0 2 4 2
43.72 5.22 2.0707 3 1 2 2
44.39 1.73 2.0406 4 0 0 1
45.44 1.30 1.9962 -4 0 6 1
46.09 2.34 1.9695 2 2 2 2
46.42 1.67 1.9562 -2 0 8 1
46.68 1.55 1.9458 -2 2 5 2
46.97 10.97 1.9345 -3 1 7 2
47.45 10.25 1.9162 0 2 5 2
47.96 8.18 1.8967 3 1 3 2
49.57 1.92 1.8389 2 2 3 2
50.29 3.47 1.8142 -2 2 6 2
50.88 3.46 1.7945 0 0 8 1
51.67 4.17 1.7691 -3 1 8 2
52.21 2.27 1.7522 0 2 6 2
52.76 2.47 1.7350 -4 0 8 1
52.78 2.49 1.7344 3 1 4 2
53.71 1.31 1.7066 2 2 4 2
54.68 2.04 1.6787 1 3 0 2
54.77 2.27 1.6760 -4 2 2 2
55.07 3.42 1.6676 -4 2 4 2
55.40 1.27 1.6584 -5 1 5 2
55.45 1.78 1.6572 -5 1 2 2
55.65 1.18 1.6517 1 3 1 2
56.59 2.68 1.6264 -1 3 3 2
56.87 3.94 1.6190 -3 1 9 2
56.98 2.87 1.6162 -5 1 6 2
57.39 1.87 1.6055 1 3 2 2
57.46 2.41 1.6037 0 2 7 2
58.09 4.51 1.5880 3 1 5 2
58.78 2.09 1.5710 -1 3 4 2
59.35 1.52 1.5572 -2 2 8 2
60.50 1.94 1.5303 4 0 4 1
62.53 5.41 1.4854 -3 1 10 2
62.54 12.93 1.4851 -3 3 2 2
62.60 7.15 1.4839 -6 0 4 1
63.17 5.86 1.4719 0 2 8 2
63.45 1.89 1.4661 4 2 2 2
63.64 3.32 1.4622 2 2 6 2
63.84 5.03 1.4580 3 1 6 2
63.86 1.83 1.4576 -3 3 4 2
64.19 2.52 1.4510 3 3 0 2
64.40 1.46 1.4467 -6 0 2 1
64.66 1.77 1.4416 -2 2 9 2
64.96 1.32 1.4356 0 0 10 1
66.12 1.05 1.4132 5 1 2 2
67.78 1.44 1.3826 -6 0 8 1
68.04 1.95 1.3779 -3 3 6 2
68.62 3.31 1.3676 -3 1 11 2
68.67 1.33 1.3668 3 3 2 2
69.31 2.08 1.3557 0 2 9 2
70.03 2.09 1.3435 3 1 7 2
71.81 1.20 1.3145 4 0 6 1
73.70 1.03 1.2855 -6 2 4 2
74.12 1.28 1.2792 -4 0 12 1
74.77 3.83 1.2697 -6 2 6 2
75.00 2.88 1.2663 0 4 2 2
75.15 2.40 1.2641 -3 1 12 2
75.37 3.84 1.2610 -6 2 2 2
75.89 2.19 1.2537 0 2 10 2
76.66 2.77 1.2430 3 1 8 2
76.71 1.97 1.2424 0 4 3 2
77.25 1.27 1.2351 -7 1 5 2
77.29 1.33 1.2345 -5 3 4 2
77.63 1.30 1.2298 -7 1 6 2
79.35 1.13 1.2075 -5 3 1 2
79.45 1.49 1.2063 -2 4 4 2
80.24 1.09 1.1963 0 0 12 1
81.42 1.09 1.1820 -6 2 9 2
84.93 1.26 1.1419 -6 2 10 2
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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.