Enstatite
Yang H, Ghose S
American Mineralogist 80 (1995) 9-20
A transitional structural state and anomalous Fe-Mg order-disorder in Mg-rich
orthopyroxene, (Mg0.75Fe0.25)2Si2O6
T = 1300 K
_database_code_amcsd 0001697
CELL PARAMETERS: 18.5132 8.9809 5.3243 90.000 90.000 90.000
SPACE GROUP: Pbca
X-RAY WAVELENGTH: 1.541838
Cell Volume: 885.246
Density (g/cm3): 3.248
MAX. ABS. INTENSITY / VOLUME**2: 8.211743194
RIR: 0.823
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
13.74 4.30 6.4457 2 1 0 4
19.18 1.56 4.6283 4 0 0 2
19.77 2.74 4.4904 0 2 0 2
19.97 4.84 4.4459 1 1 1 8
21.65 3.41 4.1050 2 1 1 8
26.41 7.99 3.3751 1 2 1 8
27.40 20.45 3.2555 4 1 1 8
27.68 53.88 3.2229 4 2 0 4
27.72 100.00 3.2185 2 2 1 8
29.78 49.43 2.9998 3 2 1 8
30.64 57.89 2.9181 6 1 0 4
31.06 16.20 2.8794 5 1 1 8
31.41 3.78 2.8484 2 3 0 4
32.47 15.81 2.7571 4 2 1 8
34.72 22.86 2.5839 1 3 1 8
35.07 4.33 2.5590 6 1 1 8
35.07 25.12 2.5584 2 0 2 4
35.67 16.06 2.5173 5 2 1 8
35.75 9.72 2.5116 2 3 1 8
36.77 22.76 2.4444 3 0 2 4
37.42 2.98 2.4034 3 3 1 8
39.03 6.53 2.3076 4 0 2 4
39.34 5.11 2.2903 7 1 1 8
39.65 4.63 2.2731 4 3 1 8
40.35 3.44 2.2350 4 1 2 8
41.79 15.10 2.1615 5 0 2 4
42.05 2.27 2.1486 6 3 0 4
42.09 2.28 2.1469 3 2 2 8
42.38 18.47 2.1330 5 3 1 8
43.04 4.80 2.1015 5 1 2 8
43.18 3.46 2.0950 7 2 1 8
43.83 3.55 2.0655 8 1 1 8
44.02 1.59 2.0571 8 2 0 4
44.04 3.72 2.0560 1 4 1 8
44.87 3.45 2.0201 4 4 0 4
44.89 13.30 2.0190 2 4 1 8
45.53 7.84 1.9925 6 3 1 8
46.29 2.55 1.9615 3 4 1 8
47.38 2.12 1.9188 8 2 1 8
48.52 5.01 1.8762 7 0 2 4
49.04 2.39 1.8575 7 3 1 8
49.57 2.91 1.8389 6 2 2 8
49.90 1.35 1.8277 4 3 2 8
50.32 4.65 1.8132 10 1 0 4
50.54 1.62 1.8060 5 4 1 8
51.81 1.47 1.7645 9 2 1 8
51.85 8.72 1.7633 2 5 0 4
52.39 1.62 1.7465 8 0 2 4
52.88 7.05 1.7314 8 3 1 8
52.89 5.36 1.7312 7 2 2 8
53.45 2.40 1.7144 8 1 2 8
53.56 3.74 1.7111 2 1 3 8
53.63 2.44 1.7090 1 4 2 8
54.37 4.57 1.6875 2 4 2 8
55.58 1.10 1.6536 3 4 2 8
55.69 19.56 1.6505 0 2 3 4
56.54 1.36 1.6277 8 2 2 8
56.54 3.28 1.6277 9 0 2 4
57.01 12.11 1.6154 9 3 1 8
57.16 1.59 1.6114 8 4 0 4
57.55 3.11 1.6016 9 1 2 8
57.71 1.78 1.5974 4 5 1 8
59.55 2.24 1.5523 6 5 0 4
59.80 1.97 1.5464 5 5 1 8
59.96 3.79 1.5428 12 0 0 2
60.50 3.01 1.5303 9 2 2 8
61.40 6.78 1.5099 10 3 1 8
61.57 12.16 1.5063 2 3 3 8
61.92 1.05 1.4986 10 1 2 8
62.00 9.75 1.4968 0 6 0 2
64.36 2.76 1.4474 3 5 2 8
65.18 1.04 1.4312 7 5 1 8
65.63 2.47 1.4226 11 0 2 4
66.06 11.07 1.4144 11 3 1 8
66.55 3.91 1.4051 11 1 2 8
67.24 3.60 1.3923 0 4 3 4
68.58 7.13 1.3683 6 3 3 8
70.02 1.25 1.3438 8 2 3 8
70.65 1.31 1.3333 4 4 3 8
70.97 7.14 1.3280 12 3 1 8
71.45 4.19 1.3203 12 1 2 8
71.62 3.44 1.3175 2 0 4 4
72.21 1.98 1.3083 14 1 0 4
72.67 2.63 1.3012 3 0 4 4
73.27 5.75 1.2920 2 6 2 8
74.12 1.33 1.2792 4 0 4 4
74.30 4.31 1.2765 3 6 2 8
74.87 1.61 1.2683 10 1 3 8
75.67 1.04 1.2568 8 6 0 4
75.74 1.03 1.2558 4 6 2 8
76.00 2.08 1.2522 8 5 2 8
76.09 1.71 1.2509 2 5 3 8
77.58 1.59 1.2306 5 6 2 8
79.46 2.65 1.2061 9 5 2 8
84.70 1.17 1.1444 8 1 4 8
87.47 1.62 1.1152 11 5 2 8
88.81 1.35 1.1018 9 6 2 8
89.94 1.46 1.0908 2 8 1 8
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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.