Clinoenstatite
Tribaudino M, Nestola F, Camara F, Domeneghetti M C
American Mineralogist 87 (2002) 648-657
The high-temperature P2_1/c - C2/c phase transition in Fe-free pyroxene
(Ca.15Mg1.85Si2O6): Structural and thermodynamic behavior
Sample: dien2, T = 1000 deg C
Locality: synthetic
_database_code_amcsd 0002805
CELL PARAMETERS: 9.7520 8.9490 5.2550 90.000 108.840 90.000
SPACE GROUP: P2_1/c
X-RAY WAVELENGTH: 1.541838
Cell Volume: 434.037
Density (g/cm3): 3.108
MAX. ABS. INTENSITY / VOLUME**2: 8.866271117
RIR: 0.929
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
19.84 7.39 4.4745 0 2 0 2
20.43 3.63 4.3472 0 1 1 4
24.98 2.40 3.5641 1 1 1 4
26.45 1.15 3.3701 -1 2 1 4
26.80 38.05 3.3264 0 2 1 4
27.77 34.27 3.2124 2 2 0 4
29.52 100.00 3.0262 -2 2 1 4
30.49 25.58 2.9316 -3 1 1 4
30.73 52.86 2.9094 3 1 0 4
31.52 1.82 2.8384 1 3 0 4
34.80 22.41 2.5779 -1 3 1 4
35.03 6.98 2.5617 -2 0 2 2
35.08 3.82 2.5581 0 3 1 4
36.12 36.89 2.4867 0 0 2 2
36.55 20.25 2.4583 2 2 1 4
37.25 4.46 2.4138 -2 3 1 4
40.42 7.29 2.2317 3 1 1 4
40.50 3.40 2.2272 1 0 2 2
41.55 1.28 2.1736 0 2 2 4
41.79 7.44 2.1613 1 1 2 4
42.02 23.27 2.1504 -3 3 1 4
42.20 1.81 2.1416 3 3 0 4
42.59 4.31 2.1227 -4 2 1 4
43.68 1.09 2.0722 -3 2 2 4
44.08 9.03 2.0542 -4 0 2 2
44.40 9.29 2.0403 0 4 1 4
45.03 2.56 2.0131 2 4 0 4
45.29 1.34 2.0021 -4 1 2 4
46.20 6.23 1.9648 -2 4 1 4
46.76 5.21 1.9428 2 0 2 2
48.55 1.02 1.8753 -4 3 1 4
49.54 1.14 1.8401 -3 3 2 4
50.48 5.08 1.8078 5 1 0 4
51.27 6.06 1.7820 2 2 2 4
51.30 2.81 1.7809 2 4 1 4
52.05 6.94 1.7571 1 5 0 4
52.96 1.59 1.7291 4 2 1 4
54.45 2.68 1.6851 -2 4 2 4
54.72 1.77 1.6775 -3 1 3 4
55.23 3.26 1.6632 0 4 2 4
55.46 4.96 1.6569 3 1 2 4
56.42 18.80 1.6309 -5 3 1 4
56.45 16.82 1.6301 -2 2 3 4
57.37 1.96 1.6062 4 4 0 4
59.59 3.47 1.5514 -6 0 2 2
59.64 2.26 1.5504 -3 5 1 4
59.78 2.64 1.5470 3 5 0 4
60.15 3.22 1.5383 6 0 0 2
61.41 3.50 1.5097 -2 3 3 4
61.96 8.12 1.4978 -1 3 3 4
62.25 9.86 1.4915 0 6 0 2
62.95 1.12 1.4764 -5 1 3 4
63.21 2.56 1.4711 4 0 2 2
63.46 1.98 1.4658 -6 2 2 4
64.10 1.58 1.4527 0 5 2 4
65.70 2.84 1.4212 -3 5 2 4
66.10 1.02 1.4136 3 5 1 4
67.30 19.96 1.3913 5 3 1 4
68.00 3.83 1.3786 -2 4 3 4
68.30 2.64 1.3734 1 3 3 4
69.01 1.27 1.3609 -7 0 2 2
69.92 6.33 1.3454 -7 1 2 4
70.37 2.54 1.3379 -5 3 3 4
70.73 1.23 1.3320 0 4 3 4
72.17 1.28 1.3089 -3 0 4 2
72.46 1.72 1.3044 7 1 0 4
72.89 1.11 1.2978 -2 1 4 4
73.06 1.14 1.2952 -3 1 4 4
73.47 2.33 1.2889 -2 6 2 4
73.73 1.09 1.2850 5 5 0 4
73.93 1.96 1.2821 5 1 2 4
74.01 2.96 1.2808 -4 0 4 2
74.13 7.14 1.2791 0 6 2 4
75.42 1.66 1.2603 -7 3 1 4
76.64 1.01 1.2434 0 0 4 2
77.83 4.84 1.2272 3 5 2 4
79.40 1.08 1.2069 -4 6 2 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.