Tarapacaite
Zachariasen W, Ziegler G
Zeitschrift fur Kristallographie 80 (1931) 164-173
The crystal structure of potassium chromate K2 Cr O4
_cod_database_code 1011186
_database_code_amcsd 0018061
CELL PARAMETERS: 5.9200 10.4000 7.6100 90.000 90.000 90.000
SPACE GROUP: Pmcn
X-RAY WAVELENGTH: 1.541838
Cell Volume: 468.532
Density (g/cm3): 2.753
MAX. ABS. INTENSITY / VOLUME**2: 13.45351273
RIR: 1.591
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
17.05 9.61 5.2000 0 2 0 2
17.24 7.96 5.1449 1 1 0 4
20.69 30.76 4.2934 0 2 1 4
20.84 58.88 4.2622 1 1 1 8
23.38 16.11 3.8050 0 0 2 2
24.92 2.63 3.5733 0 1 2 4
25.63 14.11 3.4756 1 2 1 8
27.87 15.87 3.2009 1 0 2 4
28.29 6.13 3.1548 0 3 1 4
29.08 22.43 3.0707 0 2 2 4
29.19 55.35 3.0592 1 1 2 8
29.87 100.00 2.9915 1 3 0 4
30.19 66.22 2.9600 2 0 0 2
32.86 5.43 2.7258 1 2 2 8
33.61 1.81 2.6665 2 1 1 8
34.50 12.17 2.6000 0 4 0 2
34.88 11.32 2.5724 2 2 0 4
35.02 16.63 2.5626 0 3 2 4
36.46 19.29 2.4644 0 1 3 4
36.52 1.02 2.4604 0 4 1 4
36.88 2.10 2.4370 2 2 1 8
38.27 1.91 2.3517 1 3 2 8
39.53 12.77 2.2799 0 2 3 4
39.53 13.04 2.2795 2 1 2 8
39.61 25.25 2.2752 1 1 3 8
39.67 11.77 2.2720 1 4 1 8
41.85 10.51 2.1586 2 3 1 8
42.09 5.77 2.1467 0 4 2 4
42.41 25.78 2.1311 2 2 2 8
44.24 6.09 2.0471 0 3 3 4
44.92 2.50 2.0181 1 4 2 8
45.19 3.06 2.0064 0 5 1 4
46.26 3.39 1.9624 1 5 0 4
46.49 1.25 1.9534 2 4 0 4
46.90 15.17 1.9374 2 3 2 8
47.81 5.49 1.9025 0 0 4 2
47.87 2.34 1.9002 1 5 1 8
48.04 4.65 1.8939 2 1 3 8
48.09 2.47 1.8921 2 4 1 8
48.45 2.51 1.8787 3 1 1 8
49.97 3.97 1.8251 0 5 2 4
50.25 1.44 1.8157 0 4 3 4
50.53 2.72 1.8062 2 2 3 8
51.19 1.19 1.7844 1 1 4 8
52.22 3.43 1.7518 3 0 2 4
52.73 5.29 1.7359 1 4 3 8
52.82 2.92 1.7333 0 6 0 2
53.01 4.67 1.7274 3 1 2 8
53.43 13.42 1.7150 3 3 0 4
55.06 1.92 1.6678 0 3 4 4
55.31 3.38 1.6608 2 5 1 8
56.64 1.42 1.6251 1 6 1 8
57.40 3.31 1.6054 1 3 4 8
57.59 3.32 1.6004 2 0 4 4
58.34 3.21 1.5818 2 1 4 8
58.51 2.39 1.5774 0 6 2 4
59.56 4.57 1.5522 1 5 3 8
59.75 4.68 1.5477 2 4 3 8
60.06 4.62 1.5404 3 1 3 8
60.11 1.87 1.5394 3 4 1 8
60.77 3.37 1.5242 1 6 2 8
62.05 9.34 1.4957 2 6 0 4
62.78 9.71 1.4800 4 0 0 2
63.71 3.50 1.4607 0 2 5 4
63.77 7.03 1.4595 1 1 5 8
64.09 3.28 1.4531 2 3 4 8
64.10 1.14 1.4528 3 4 2 8
64.68 3.83 1.4410 1 7 0 4
65.16 2.01 1.4316 3 5 0 4
65.98 1.06 1.4159 1 7 1 8
66.62 1.56 1.4038 0 5 4 4
66.87 1.09 1.3992 4 2 1 8
67.26 8.54 1.3921 2 6 2 8
67.31 1.55 1.3911 1 6 3 8
70.11 2.52 1.3422 2 1 5 8
70.48 2.44 1.3361 3 4 3 8
70.65 2.34 1.3332 4 2 2 8
71.88 2.24 1.3135 0 4 5 4
72.11 4.36 1.3099 2 2 5 8
72.74 1.81 1.3000 0 8 0 2
73.65 1.20 1.2862 4 4 0 4
73.91 5.85 1.2823 1 4 5 8
73.96 2.09 1.2816 4 3 2 8
74.49 1.20 1.2738 3 3 4 8
74.83 1.82 1.2688 4 1 3 8
75.39 2.26 1.2608 2 3 5 8
75.94 2.11 1.2530 1 7 3 8
76.39 1.97 1.2467 3 5 3 8
76.78 2.05 1.2414 4 2 3 8
79.73 3.01 1.2027 1 5 5 8
79.90 3.06 1.2006 2 4 5 8
80.17 3.00 1.1972 3 1 5 8
80.73 2.50 1.1903 2 8 0 4
81.01 2.03 1.1869 3 7 0 4
81.89 2.26 1.1764 2 7 3 8
81.92 1.10 1.1760 2 8 1 8
82.59 1.30 1.1682 4 0 4 4
86.46 1.18 1.1255 4 6 0 4
86.62 1.84 1.1239 5 1 2 8
86.95 2.57 1.1205 5 3 0 4
89.67 2.30 1.0934 3 4 5 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.