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 = 0.33 GPa
_database_code_amcsd 0004653
CELL PARAMETERS: 6.2690 15.1400 5.6650 90.000 114.100 90.000
SPACE GROUP: C2/c
X-RAY WAVELENGTH: 1.541838
Cell Volume: 490.813
Density (g/cm3): 2.388
MAX. ABS. INTENSITY / VOLUME**2: 11.82393689
RIR: 1.612
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
11.69 75.22 7.5700 0 2 0 2
20.80 100.00 4.2700 0 2 1 4
23.50 3.21 3.7851 1 3 0 4
23.50 10.61 3.7850 0 4 0 2
28.20 5.86 3.1640 1 1 1 4
29.24 79.08 3.0543 0 4 1 4
31.22 54.16 2.8654 -2 2 1 4
31.26 2.20 2.8613 2 0 0 2
32.19 13.81 2.7811 -1 1 2 4
33.48 40.68 2.6765 2 2 0 4
34.67 5.89 2.5872 -1 5 1 4
34.69 1.22 2.5856 0 0 2 2
36.08 11.71 2.4896 -2 0 2 2
36.41 1.86 2.4679 -1 3 2 4
36.73 8.53 2.4468 0 2 2 4
37.53 2.03 2.3963 -2 4 1 4
40.82 17.90 2.2108 1 5 1 4
42.33 1.31 2.1350 0 4 2 4
43.51 16.60 2.0800 -2 4 2 4
43.61 4.28 2.0753 2 2 1 4
43.77 5.76 2.0681 -3 1 1 4
43.79 8.12 2.0673 -1 5 2 4
44.35 6.58 2.0426 1 1 2 4
45.74 3.77 1.9838 -1 7 1 4
46.59 4.45 1.9492 -3 1 2 4
48.08 16.83 1.8925 2 6 0 4
48.08 2.37 1.8925 0 8 0 2
48.56 13.77 1.8747 2 4 1 4
48.94 3.37 1.8612 -1 1 3 4
50.54 14.98 1.8059 0 6 2 4
50.89 4.25 1.7944 -2 2 3 4
51.20 1.50 1.7843 3 3 0 4
51.42 1.67 1.7772 0 8 1 4
51.57 9.36 1.7722 -2 6 2 4
53.80 1.54 1.7041 1 5 2 4
54.60 3.12 1.6807 0 2 3 4
55.35 8.21 1.6599 -2 4 3 4
56.08 3.85 1.6400 2 6 1 4
56.92 7.03 1.6177 2 0 2 2
57.04 3.17 1.6147 -2 8 1 4
57.07 2.36 1.6139 1 9 0 4
58.33 1.12 1.5820 2 2 2 4
58.47 1.11 1.5785 2 8 0 4
58.54 1.72 1.5767 -3 3 3 4
60.64 1.99 1.5271 0 8 2 4
61.07 2.10 1.5175 3 3 1 4
61.55 1.24 1.5066 -2 8 2 4
62.30 1.05 1.4904 -2 6 3 4
64.01 1.42 1.4546 -3 7 2 4
64.97 5.10 1.4353 -4 4 1 4
65.21 2.18 1.4306 4 0 0 2
66.04 3.45 1.4146 -2 0 4 2
66.91 2.63 1.3983 -4 2 3 4
67.76 1.13 1.3830 -1 1 4 4
69.06 5.56 1.3601 -2 10 1 4
70.35 1.10 1.3382 4 4 0 4
70.74 1.50 1.3318 -4 4 3 4
71.06 1.44 1.3266 -1 11 1 4
71.35 1.72 1.3218 -2 8 3 4
71.51 2.52 1.3194 -4 6 2 4
74.45 2.35 1.2744 0 8 3 4
76.28 1.20 1.2483 2 2 3 4
76.53 1.20 1.2448 -4 0 4 2
76.55 1.49 1.2445 4 6 0 4
76.93 1.54 1.2394 2 10 1 4
77.12 3.35 1.2367 4 2 1 4
77.65 1.88 1.2297 2 8 2 4
77.75 2.32 1.2283 -4 2 4 4
79.92 2.21 1.2003 2 4 3 4
79.97 2.22 1.1997 -4 8 1 4
80.10 2.64 1.1981 -4 8 2 4
82.07 1.19 1.1742 -5 3 3 4
83.79 1.48 1.1544 2 12 0 4
84.14 2.45 1.1506 0 6 4 4
84.99 1.09 1.1412 4 8 0 4
85.33 4.97 1.1375 0 10 3 4
85.67 1.39 1.1339 0 12 2 4
85.75 1.39 1.1331 -2 8 4 4
87.35 1.32 1.1164 -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.