Barnesite
Bachmann H G, Barnes W H
The Canadian Mineralogist 7 (1962) 219-235
The crystal structure of a sodium-calcium variety of metahewettite
Sample: hydrated
Note: sample is half-way between barnesite and metahewittite
Locality: Paradox Valley, Montrose County, Coldrado,USA
_database_code_amcsd 0018488
CELL PARAMETERS: 12.2600 3.5800 8.1100 90.000 92.500 90.000
SPACE GROUP: P2_1
X-RAY WAVELENGTH: 1.541838
Cell Volume: 355.616
Density (g/cm3): 3.012
MAX. ABS. INTENSITY / VOLUME**2: 24.27037702
RIR: 2.624
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
10.92 100.00 8.1023 0 0 1 2
12.83 8.16 6.8974 -1 0 1 2
13.36 5.52 6.6259 1 0 1 2
14.46 3.06 6.1242 2 0 0 2
18.54 8.11 4.7862 2 0 1 2
21.77 3.26 4.0828 3 0 0 2
21.94 10.94 4.0511 0 0 2 2
24.84 33.24 3.5838 3 0 1 2
25.83 9.63 3.4487 -2 0 2 2
25.93 4.31 3.4362 1 1 0 2
26.91 1.69 3.3129 2 0 2 2
27.23 6.22 3.2746 0 1 1 2
28.08 36.20 3.1775 -1 1 1 2
28.34 8.74 3.1497 1 1 1 2
28.89 1.66 3.0907 2 1 0 2
30.40 9.46 2.9406 -3 0 2 2
30.73 9.22 2.9091 -2 1 1 2
31.69 1.68 2.8239 4 0 1 2
31.79 4.27 2.8150 3 0 2 2
33.17 9.22 2.7008 0 0 3 2
33.40 1.05 2.6826 0 1 2 2
33.67 4.32 2.6619 -1 0 3 2
34.00 1.40 2.6365 -1 1 2 2
34.43 3.69 2.6048 1 1 2 2
35.44 1.26 2.5328 3 1 1 2
35.75 1.99 2.5119 -2 0 3 2
36.69 1.95 2.4497 5 0 0 2
36.97 1.66 2.4315 2 1 2 2
37.90 2.90 2.3737 -5 0 1 2
38.69 1.43 2.3270 4 1 0 2
38.87 1.72 2.3170 5 0 1 2
39.18 5.18 2.2991 -3 0 3 2
40.69 2.73 2.2172 4 1 1 2
40.86 2.15 2.2086 3 0 3 2
41.90 2.24 2.1560 0 1 3 2
42.27 6.23 2.1379 -5 0 2 2
42.84 3.59 2.1109 1 1 3 2
44.02 7.96 2.0569 5 0 2 2
44.74 3.79 2.0256 0 0 4 2
45.04 2.25 2.0126 -1 0 4 2
45.06 2.05 2.0119 2 1 3 2
49.67 2.06 1.8355 -5 1 2 2
50.94 7.29 1.7925 -4 1 3 2
51.02 11.48 1.7900 0 2 0 1
51.21 3.14 1.7838 3 0 4 2
51.22 1.40 1.7835 5 1 2 2
52.13 2.10 1.7544 -1 1 4 2
52.34 1.67 1.7479 0 2 1 2
52.77 4.42 1.7347 4 1 3 2
57.56 3.34 1.6014 3 2 1 2
58.06 1.00 1.5887 -2 2 2 2
59.50 1.07 1.5535 -4 1 4 2
60.42 1.39 1.5321 7 1 1 2
60.47 1.54 1.5310 8 0 0 2
60.56 1.36 1.5290 -3 2 2 2
61.11 1.57 1.5165 -8 0 1 2
61.45 1.68 1.5088 -6 1 3 2
62.22 1.61 1.4920 0 2 3 2
62.53 1.60 1.4853 -7 1 2 2
63.13 1.38 1.4726 -1 1 5 2
68.35 1.48 1.3725 -5 2 2 2
69.63 1.89 1.3503 5 2 2 2
75.12 1.08 1.2646 -9 1 1 2
75.20 1.01 1.2635 3 2 4 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.