Gypsum
Comodi P, Nazzareni S, Zanazzi P F, Speziale S
American Mineralogist 93 (2008) 1530-1537
High-pressure behavior of gypsum: A single-crystal X-ray study
Locality: Valle di Caramanico, Abruzzo, Italy
Note: P = 3.94 GPa
_database_code_amcsd 0004658
CELL PARAMETERS: 6.1360 14.9120 5.5560 90.000 115.730 90.000
SPACE GROUP: C2/c
X-RAY WAVELENGTH: 1.541838
Cell Volume: 457.969
Density (g/cm3): 2.560
MAX. ABS. INTENSITY / VOLUME**2: 12.58443187
RIR: 1.601
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
11.87 68.30 7.4560 0 2 0 2
21.38 100.00 4.1556 0 2 1 4
23.87 10.14 3.7280 0 4 0 2
24.08 2.04 3.6961 1 3 0 4
25.47 1.86 3.4978 -1 3 1 4
29.42 4.66 3.0355 1 1 1 4
29.89 76.71 2.9898 0 4 1 4
31.77 49.23 2.8166 -2 2 1 4
32.39 1.29 2.7638 2 0 0 2
32.80 12.30 2.7305 -1 1 2 4
34.16 1.25 2.6247 1 5 0 4
34.61 43.78 2.5915 2 2 0 4
35.18 6.54 2.5508 -1 5 1 4
36.50 16.69 2.4614 -2 0 2 2
37.08 2.48 2.4246 -1 3 2 4
37.92 8.87 2.3725 0 2 2 4
38.18 3.05 2.3569 -2 4 1 4
42.04 20.57 2.1494 1 5 1 4
43.56 1.60 2.0778 0 4 2 4
44.09 18.33 2.0541 -2 4 2 4
44.58 5.57 2.0325 -1 5 2 4
44.85 4.41 2.0210 -3 1 1 4
45.50 6.07 1.9937 2 2 1 4
45.64 1.65 1.9878 1 7 0 4
46.26 6.81 1.9624 1 1 2 4
46.45 4.32 1.9551 -1 7 1 4
47.27 5.51 1.9230 -3 1 2 4
48.86 2.29 1.8640 0 8 0 2
49.31 17.79 1.8480 2 6 0 4
50.16 3.00 1.8187 -1 1 3 4
50.45 10.48 1.8091 2 4 1 4
51.70 3.84 1.7681 -2 2 3 4
51.85 15.96 1.7635 0 6 2 4
52.31 8.08 1.7489 -2 6 2 4
52.38 1.88 1.7468 0 8 1 4
53.00 1.06 1.7277 3 3 0 4
55.73 1.65 1.6494 1 5 2 4
56.24 9.79 1.6355 -2 4 3 4
56.52 3.48 1.6281 0 2 3 4
58.00 3.36 1.5901 2 6 1 4
58.03 4.30 1.5894 -2 8 1 4
58.12 2.15 1.5871 1 9 0 4
59.64 6.93 1.5502 2 0 2 2
62.09 1.61 1.4949 0 8 2 4
62.50 1.87 1.4860 -2 8 2 4
63.10 1.27 1.4733 -3 7 1 4
63.34 1.60 1.4684 -2 6 3 4
63.74 2.14 1.4601 3 3 1 4
65.04 1.07 1.4340 -3 7 2 4
66.81 5.01 1.4003 -4 4 1 4
67.44 3.13 1.3887 -2 0 4 2
67.63 1.00 1.3852 0 6 3 4
67.82 3.17 1.3819 4 0 0 2
67.86 3.71 1.3810 -4 2 3 4
69.77 1.49 1.3479 -1 1 4 4
70.30 5.07 1.3390 -2 10 1 4
72.29 2.20 1.3070 -1 11 1 4
72.60 1.70 1.3022 -2 8 3 4
72.92 3.66 1.2973 -4 6 2 4
73.02 1.30 1.2957 4 4 0 4
76.65 2.86 1.2431 0 8 3 4
77.57 1.34 1.2307 -4 0 4 2
78.82 2.39 1.2143 -4 2 4 4
79.18 1.60 1.2097 2 10 1 4
79.33 1.13 1.2078 4 6 0 4
80.09 1.17 1.1983 2 2 3 4
80.60 1.50 1.1919 2 8 2 4
80.82 2.74 1.1892 4 2 1 4
81.71 1.80 1.1785 -4 8 2 4
82.11 2.14 1.1738 -4 8 1 4
83.80 2.37 1.1544 2 4 3 4
84.53 1.21 1.1463 4 4 1 4
85.72 1.87 1.1334 2 12 0 4
87.23 2.38 1.1176 0 6 4 4
87.62 1.30 1.1136 -2 8 4 4
87.68 1.66 1.1130 0 12 2 4
87.80 4.78 1.1118 0 10 3 4
87.97 1.33 1.1101 4 8 0 4
88.69 1.37 1.1029 -4 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.