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 = 2.03 GPa
_database_code_amcsd 0004656
CELL PARAMETERS: 6.2000 15.0100 5.6100 90.000 114.860 90.000
SPACE GROUP: C2/c
X-RAY WAVELENGTH: 1.541838
Cell Volume: 473.701
Density (g/cm3): 2.474
MAX. ABS. INTENSITY / VOLUME**2: 12.39774997
RIR: 1.631
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
11.79 68.16 7.5050 0 2 0 2
21.09 100.00 4.2126 0 2 1 4
23.71 9.98 3.7525 0 4 0 2
23.80 2.46 3.7386 1 3 0 4
25.31 1.02 3.5185 -1 3 1 4
28.79 5.29 3.1009 1 1 1 4
29.57 74.94 3.0204 0 4 1 4
31.51 53.22 2.8396 -2 2 1 4
31.81 1.75 2.8127 2 0 0 2
32.49 13.75 2.7556 -1 1 2 4
34.04 42.88 2.6338 2 2 0 4
34.96 6.25 2.5667 -1 5 1 4
36.31 14.14 2.4744 -2 0 2 2
36.75 2.09 2.4456 -1 3 2 4
37.31 8.91 2.4103 0 2 2 4
37.88 2.34 2.3750 -2 4 1 4
41.43 19.41 2.1795 1 5 1 4
42.94 1.61 2.1063 0 4 2 4
43.83 17.53 2.0657 -2 4 2 4
44.21 6.63 2.0489 -1 5 2 4
44.31 4.64 2.0441 -3 1 1 4
44.52 4.71 2.0350 2 2 1 4
45.26 6.87 2.0034 1 1 2 4
46.14 4.40 1.9675 -1 7 1 4
46.95 5.17 1.9352 -3 1 2 4
48.52 2.24 1.8763 0 8 0 2
48.71 17.14 1.8693 2 6 0 4
49.48 11.67 1.8420 2 4 1 4
49.53 3.07 1.8402 -1 1 3 4
51.20 15.56 1.7841 0 6 2 4
51.30 3.79 1.7808 -2 2 3 4
51.94 1.83 1.7605 0 8 1 4
51.98 8.52 1.7592 -2 6 2 4
52.09 1.34 1.7559 3 3 0 4
54.74 1.54 1.6768 1 5 2 4
55.53 3.48 1.6550 0 2 3 4
55.81 9.21 1.6471 -2 4 3 4
57.03 3.24 1.6148 2 6 1 4
57.59 3.63 1.6006 -2 8 1 4
57.65 2.23 1.5990 1 9 0 4
58.22 6.83 1.5846 2 0 2 2
58.95 1.43 1.5667 -3 3 3 4
61.39 1.53 1.5102 0 8 2 4
62.08 1.56 1.4950 -2 8 2 4
62.36 2.39 1.4890 3 3 1 4
62.85 1.50 1.4787 -2 6 3 4
64.57 1.41 1.4432 -3 7 2 4
65.90 5.52 1.4174 -4 4 1 4
66.48 2.70 1.4064 4 0 0 2
66.60 1.11 1.4042 0 6 3 4
66.64 1.03 1.4033 2 8 1 4
66.74 3.27 1.4016 -2 0 4 2
67.43 3.23 1.3890 -4 2 3 4
68.73 1.44 1.3658 -1 1 4 4
69.75 5.13 1.3483 -2 10 1 4
71.66 1.07 1.3169 4 4 0 4
71.75 1.83 1.3155 -1 11 1 4
72.02 1.68 1.3112 -2 8 3 4
72.25 3.06 1.3076 -4 6 2 4
75.55 2.57 1.2585 0 8 3 4
77.09 1.07 1.2372 -4 0 4 2
77.93 1.19 1.2259 4 6 0 4
78.08 1.58 1.2239 2 10 1 4
78.09 1.06 1.2238 2 2 3 4
78.33 2.37 1.2207 -4 2 4 4
78.90 3.05 1.2132 4 2 1 4
79.11 1.80 1.2106 2 8 2 4
80.96 2.22 1.1875 -4 8 2 4
81.08 2.11 1.1861 -4 8 1 4
81.78 2.37 1.1777 2 4 3 4
82.87 1.17 1.1650 -5 3 3 4
84.83 1.71 1.1429 2 12 0 4
85.64 2.43 1.1342 0 6 4 4
86.48 1.26 1.1253 4 8 0 4
86.59 4.78 1.1242 0 10 3 4
86.71 1.36 1.1229 -2 8 4 4
86.74 1.46 1.1226 0 12 2 4
88.08 1.42 1.1090 -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.