Pyroxene-ideal
Thompson R M, Downs R T
American Mineralogist 88 (2003) 653-666
Model pyroxenes I: Ideal pyroxene topologies
Pyroxene #24 based on stacking sequence ABACBCABACBC
Note: Atoms Mg, Si, and O are assigned to atomic positions just for convenience.
_database_code_amcsd 0003031
CELL PARAMETERS: 19.8997 6.0000 3.4641 90.000 100.025 90.000
SPACE GROUP: C2/c
X-RAY WAVELENGTH: 1.541838
Cell Volume: 407.293
Density (g/cm3): 9.821
MAX. ABS. INTENSITY / VOLUME**2: 17.00443198
RIR: 0.564
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
20.10 1.28 4.4188 3 1 0 4
27.31 4.32 3.2660 6 0 0 2
29.78 9.18 3.0000 0 2 0 2
31.18 4.39 2.8685 -3 1 1 4
31.18 15.95 2.8685 1 1 1 4
35.07 3.01 2.5584 -5 1 1 4
40.02 8.96 2.2528 -2 2 1 4
40.02 1.13 2.2528 0 2 1 4
40.84 30.30 2.2094 6 2 0 4
40.84 3.79 2.2094 -7 1 1 4
40.84 3.79 2.2094 5 1 1 4
42.18 17.55 2.1423 -4 2 1 4
42.18 17.55 2.1423 2 2 1 4
44.25 100.00 2.0467 9 1 0 4
46.25 37.95 1.9629 -6 2 1 4
47.95 12.35 1.8974 -9 1 1 4
47.95 3.44 1.8974 7 1 1 4
51.89 10.54 1.7621 -8 2 1 4
51.89 20.35 1.7621 6 2 1 4
53.74 14.57 1.7056 -3 3 1 4
53.74 36.44 1.7056 1 3 1 4
53.74 18.22 1.7056 -4 0 2 2
53.74 7.29 1.7056 0 0 2 2
55.41 3.22 1.6581 -1 1 2 4
56.06 8.33 1.6406 9 1 1 4
56.34 4.58 1.6330 12 0 0 2
56.34 32.41 1.6330 -5 3 1 4
56.34 7.11 1.6330 3 3 1 4
56.34 3.56 1.6330 -6 0 2 2
56.34 16.20 1.6330 2 0 2 2
57.12 6.73 1.6126 -5 1 2 4
57.12 6.73 1.6126 1 1 2 4
58.79 1.05 1.5706 -10 2 1 4
58.79 1.05 1.5706 8 2 1 4
60.44 15.70 1.5317 3 1 2 4
60.50 3.55 1.5302 -7 3 1 4
60.50 3.55 1.5302 5 3 1 4
60.50 1.78 1.5302 -8 0 2 2
60.50 1.78 1.5302 4 0 2 2
62.66 1.82 1.4827 -4 2 2 4
65.03 1.73 1.4343 -13 1 1 4
65.03 1.73 1.4343 11 1 1 4
65.22 9.37 1.4304 -9 1 2 4
65.22 5.06 1.4304 5 1 2 4
66.07 19.25 1.4142 -9 3 1 4
66.07 9.62 1.4142 6 0 2 2
66.78 1.75 1.4009 -12 2 1 4
66.78 3.01 1.4009 10 2 1 4
68.31 1.65 1.3731 -2 4 1 4
68.88 5.52 1.3631 6 4 0 4
69.83 3.54 1.3469 -4 4 1 4
69.83 3.54 1.3469 2 4 1 4
72.83 8.33 1.2987 -6 4 1 4
72.89 3.53 1.2978 -11 3 1 4
72.89 5.51 1.2978 9 3 1 4
72.89 2.76 1.2978 -12 0 2 2
72.89 1.77 1.2978 8 0 2 2
74.12 2.88 1.2792 6 2 2 4
74.30 2.69 1.2765 15 1 0 4
75.77 2.04 1.2554 -14 2 1 4
75.77 2.29 1.2554 12 2 1 4
77.23 3.01 1.2352 -8 4 1 4
77.23 5.29 1.2352 6 4 1 4
78.68 1.82 1.2161 -13 1 2 4
80.67 2.49 1.1911 -12 2 2 4
80.91 3.58 1.1882 -13 3 1 4
80.91 3.58 1.1882 11 3 1 4
80.91 1.79 1.1882 -14 0 2 2
80.91 1.79 1.1882 10 0 2 2
87.27 1.45 1.1172 -15 1 2 4
87.27 1.39 1.1172 11 1 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.