Cechite
Pertlik F
Neues Jahrbuch fur Mineralogie, Monatshefte 1989 (1989) 34-40
The crystal structure of cechite, Pb(Fe,Mn)(VO4)(OH) with Fe>Mn. A mineral of the descloizite group
Locality: Vrancice, Bohemian pluton, Pribram, Czechoslovakia (Czech Republic)
_database_code_amcsd 0014834
CELL PARAMETERS: 7.6050 9.4350 6.0990 90.000 90.000 90.000
SPACE GROUP: Pnam
X-RAY WAVELENGTH: 1.541838
Cell Volume: 437.623
Density (g/cm3): 5.976
MAX. ABS. INTENSITY / VOLUME**2: 83.27680880
RIR: 4.537
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
17.31 67.55 5.1220 0 1 1 4
18.81 18.58 4.7175 0 2 0 2
20.91 39.95 4.2483 1 1 1 8
22.17 20.31 4.0088 1 2 0 4
23.39 1.62 3.8025 2 0 0 2
25.25 26.02 3.5268 2 1 0 4
26.61 18.48 3.3500 1 2 1 8
27.65 100.00 3.2267 2 0 1 4
29.29 30.55 3.0495 0 0 2 2
30.19 5.98 2.9605 2 2 0 4
30.76 53.80 2.9063 1 3 0 4
33.04 38.22 2.7111 1 1 2 8
33.65 45.72 2.6633 2 2 1 8
34.18 58.30 2.6236 1 3 1 8
35.04 20.59 2.5610 0 2 2 4
36.71 7.54 2.4482 3 1 0 4
37.04 5.78 2.4271 1 2 2 8
37.10 1.70 2.4235 2 3 0 4
37.82 4.50 2.3790 2 0 2 4
39.05 38.85 2.3068 2 1 2 8
39.67 2.83 2.2720 3 1 1 8
40.02 11.99 2.2529 1 4 0 4
40.39 6.22 2.2330 3 2 0 4
42.56 2.17 2.1242 2 2 2 8
42.79 12.07 2.1133 1 4 1 8
42.99 14.77 2.1039 1 3 2 8
43.14 11.01 2.0969 3 2 1 8
45.24 1.36 2.0044 2 4 0 4
45.65 6.59 1.9874 0 1 3 4
45.98 5.76 1.9737 3 3 0 4
47.27 4.37 1.9228 1 1 3 8
47.76 2.06 1.9042 2 4 1 8
47.84 8.15 1.9013 4 0 0 2
48.48 14.14 1.8778 3 3 1 8
48.81 6.52 1.8658 0 4 2 4
50.32 3.09 1.8132 1 2 3 8
50.36 6.31 1.8120 1 4 2 8
50.64 5.02 1.8027 0 5 1 4
50.67 3.78 1.8016 3 2 2 8
50.93 15.37 1.7928 2 0 3 4
51.25 10.26 1.7824 4 1 1 8
51.85 12.82 1.7634 4 2 0 4
52.14 9.03 1.7541 1 5 1 8
53.03 2.43 1.7268 3 4 0 4
54.27 2.91 1.6903 2 5 0 4
54.77 9.02 1.6759 2 2 3 8
54.81 1.22 1.6750 2 4 2 8
55.13 13.57 1.6659 1 3 3 8
55.29 4.29 1.6615 3 4 1 8
55.46 28.21 1.6569 3 3 2 8
57.09 14.22 1.6134 4 0 2 4
58.71 4.89 1.5725 0 6 0 2
58.81 12.57 1.5701 1 5 2 8
60.66 1.39 1.5266 4 2 2 8
60.74 9.82 1.5247 0 0 4 2
61.23 6.11 1.5137 3 5 0 4
61.43 3.27 1.5093 1 4 3 8
61.70 3.16 1.5033 3 2 3 8
61.73 1.38 1.5026 3 4 2 8
61.78 1.93 1.5016 5 1 0 4
62.77 1.40 1.4803 4 4 0 4
62.86 3.04 1.4784 2 5 2 8
63.30 3.89 1.4691 3 5 1 8
63.84 2.12 1.4581 5 1 1 8
64.19 1.10 1.4509 0 2 4 4
64.35 1.00 1.4476 5 2 0 4
65.50 1.82 1.4251 1 2 4 8
65.97 5.12 1.4161 3 3 3 8
66.10 11.02 1.4136 2 6 1 8
66.37 1.19 1.4085 5 2 1 8
66.85 3.28 1.3996 2 1 4 8
66.95 1.81 1.3976 0 6 2 4
67.75 1.80 1.3830 0 5 3 4
68.27 4.22 1.3738 4 1 3 8
69.02 3.61 1.3607 1 5 3 8
69.30 3.07 1.3558 3 5 2 8
69.63 7.93 1.3502 1 3 4 8
70.48 7.16 1.3360 5 3 1 8
71.71 1.68 1.3161 3 4 3 8
71.71 2.28 1.3161 0 7 1 4
72.22 2.35 1.3082 4 5 1 8
73.12 1.81 1.2943 3 1 4 8
74.18 1.73 1.2783 5 4 0 4
74.72 1.54 1.2704 2 7 0 4
75.25 2.57 1.2627 1 4 4 8
75.50 1.39 1.2592 3 2 4 8
76.08 1.25 1.2511 5 4 1 8
76.22 5.11 1.2491 5 3 2 8
76.81 4.58 1.2410 6 0 1 4
78.84 1.90 1.2141 3 5 3 8
79.02 1.59 1.2117 4 6 0 4
79.32 1.01 1.2079 5 1 3 8
79.42 1.95 1.2066 3 3 4 8
79.93 2.04 1.2002 6 2 1 8
80.80 2.57 1.1895 4 0 4 4
81.40 5.38 1.1822 2 6 3 8
81.68 1.68 1.1789 5 4 2 8
82.20 2.77 1.1727 2 7 2 8
83.08 2.21 1.1625 5 5 1 8
83.17 2.29 1.1615 6 1 2 8
83.17 3.21 1.1615 2 0 5 4
83.89 4.54 1.1534 4 2 4 8
85.50 3.92 1.1357 5 3 3 8
85.83 1.33 1.1322 2 5 4 8
86.24 2.21 1.1278 2 2 5 8
86.41 6.42 1.1261 4 6 2 8
86.54 2.72 1.1248 1 3 5 8
86.67 1.28 1.1234 0 7 3 4
87.15 1.30 1.1184 4 5 3 8
88.21 3.62 1.1077 2 8 1 8
88.99 2.97 1.1000 0 8 2 4
89.54 2.50 1.0947 0 6 4 4
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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.