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 = 500 deg C
Locality: synthetic
_database_code_amcsd 0002802
CELL PARAMETERS: 9.7020 8.9030 5.2280 90.000 108.580 90.000
SPACE GROUP: P2_1/c
X-RAY WAVELENGTH: 1.541838
Cell Volume: 428.042
Density (g/cm3): 3.152
MAX. ABS. INTENSITY / VOLUME**2: 8.836812195
RIR: 0.913
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
19.95 7.21 4.4515 0 2 0 2
20.51 4.75 4.3300 0 1 1 4
25.05 2.05 3.5546 1 1 1 4
26.60 1.85 3.3515 -1 2 1 4
26.92 36.73 3.3116 0 2 1 4
27.90 34.96 3.1983 2 2 0 4
29.70 100.00 3.0081 -2 2 1 4
30.58 1.31 2.9236 1 2 1 4
30.69 26.37 2.9135 -3 1 1 4
30.85 55.48 2.8984 3 1 0 4
31.68 1.49 2.8243 1 3 0 4
35.00 23.19 2.5640 -1 3 1 4
35.25 7.50 2.5462 -2 0 2 2
35.25 5.34 2.5460 0 3 1 4
36.26 39.71 2.4778 0 0 2 2
36.66 21.21 2.4511 2 2 1 4
37.47 6.42 2.4001 -2 3 1 4
40.51 7.74 2.2266 3 1 1 4
40.62 5.25 2.2213 1 0 2 2
41.72 1.10 2.1650 0 2 2 4
41.92 7.34 2.1552 1 1 2 4
42.27 26.46 2.1382 -3 3 1 4
42.39 1.79 2.1322 3 3 0 4
42.84 4.61 2.1108 -4 2 1 4
43.98 1.51 2.0590 -3 2 2 4
44.40 8.78 2.0404 -4 0 2 2
44.42 1.02 2.0395 -1 4 1 4
44.63 8.99 2.0304 0 4 1 4
45.26 3.10 2.0034 2 4 0 4
45.61 2.13 1.9888 -4 1 2 4
46.47 6.36 1.9540 -2 4 1 4
46.87 5.87 1.9385 2 0 2 2
48.83 1.55 1.8649 -4 3 1 4
50.68 5.24 1.8012 5 1 0 4
51.41 6.58 1.7773 2 2 2 4
51.44 1.30 1.7765 -5 2 1 4
51.52 3.03 1.7738 2 4 1 4
52.33 7.25 1.7481 1 5 0 4
53.11 1.68 1.7244 4 2 1 4
54.78 2.67 1.6758 -2 4 2 4
54.78 1.15 1.6757 0 5 1 4
55.08 2.18 1.6674 -3 1 3 4
55.50 2.83 1.6558 0 4 2 4
55.59 5.60 1.6534 3 1 2 4
56.74 20.96 1.6223 -5 3 1 4
56.78 17.65 1.6215 -2 2 3 4
57.64 1.88 1.5991 4 4 0 4
60.00 2.30 1.5419 -3 5 1 4
60.01 4.20 1.5416 -6 0 2 2
60.09 3.42 1.5397 3 5 0 4
60.39 3.73 1.5327 6 0 0 2
61.78 5.96 1.5017 -2 3 3 4
62.28 9.33 1.4909 -1 3 3 4
62.60 12.00 1.4838 0 6 0 2
63.35 2.88 1.4681 4 0 2 2
63.43 1.17 1.4665 -5 1 3 4
63.66 1.11 1.4618 2 4 2 4
63.90 1.99 1.4568 -6 2 2 4
64.44 2.28 1.4460 0 5 2 4
66.13 2.88 1.4131 -3 5 2 4
66.28 1.08 1.4103 -5 2 3 4
66.40 1.04 1.4079 3 5 1 4
67.53 23.59 1.3870 5 3 1 4
68.41 4.31 1.3713 -2 4 3 4
68.56 3.19 1.3687 1 3 3 4
69.49 2.15 1.3527 -7 0 2 2
69.61 1.07 1.3507 2 2 3 4
70.40 6.69 1.3374 -7 1 2 4
70.89 2.71 1.3293 -5 3 3 4
71.07 1.62 1.3265 0 4 3 4
72.63 2.04 1.3017 -3 0 4 2
72.76 1.86 1.2997 7 1 0 4
73.30 1.51 1.2914 -2 1 4 4
73.93 2.38 1.2820 -2 6 2 4
74.11 2.23 1.2794 5 1 2 4
74.11 1.21 1.2793 5 5 0 4
74.54 2.98 1.2731 -4 0 4 2
74.54 7.88 1.2730 0 6 2 4
75.86 1.83 1.2542 -7 3 1 4
77.73 1.27 1.2286 -3 5 3 4
77.84 1.09 1.2271 0 1 4 4
78.15 5.48 1.2230 3 5 2 4
79.94 1.32 1.2000 -4 6 2 4
81.18 1.12 1.1849 3 3 3 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.