Pyroxene-ideal
Thompson R M, Downs R T
American Mineralogist 88 (2003) 653-666
Model pyroxenes I: Ideal pyroxene topologies
Pyroxene #28 based on stacking sequence ABABABACABAC
Note: Atoms Mg, Si, and O are assigned to atomic positions just for convenience.
_database_code_amcsd 0003035
CELL PARAMETERS: 19.5959 6.0000 3.4641 90.000 90.000 90.000
SPACE GROUP: Pc
X-RAY WAVELENGTH: 1.541838
Cell Volume: 407.293
Density (g/cm3): 9.821
MAX. ABS. INTENSITY / VOLUME**2: 17.20131924
RIR: 0.570
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
20.10 1.26 4.4188 3 1 0 2
27.31 4.27 3.2660 6 0 0 1
29.78 9.07 3.0000 0 2 0 2
29.78 17.10 3.0000 0 1 1 2
30.14 3.71 2.9654 -1 1 1 2
30.14 3.71 2.9654 1 1 1 2
31.18 2.36 2.8685 -2 1 1 2
31.18 2.36 2.8685 2 1 1 2
32.85 4.01 2.7262 3 1 1 2
32.85 4.01 2.7262 -3 1 1 2
40.84 29.95 2.2094 6 2 0 2
40.84 5.75 2.2094 6 1 1 2
40.84 7.48 2.2094 -6 1 1 2
40.84 1.88 2.2094 -2 2 1 2
40.84 1.88 2.2094 2 2 1 2
42.18 17.87 2.1423 3 2 1 2
42.18 59.46 2.1423 -3 2 1 2
44.00 3.74 2.0580 4 2 1 2
44.00 3.74 2.0580 -4 2 1 2
44.25 98.86 2.0467 9 1 0 2
46.25 3.41 1.9629 5 2 1 2
46.25 3.41 1.9629 -5 2 1 2
48.89 9.79 1.8628 6 2 1 2
48.89 9.79 1.8628 -6 2 1 2
51.89 3.03 1.7621 -9 1 1 2
51.89 3.03 1.7621 9 1 1 2
51.89 1.34 1.7621 7 2 1 2
51.89 1.34 1.7621 -7 2 1 2
52.86 1.57 1.7321 0 3 1 2
53.74 2.30 1.7056 -2 3 1 2
53.74 2.30 1.7056 2 3 1 2
53.74 1.15 1.7056 -2 0 2 1
53.74 1.15 1.7056 2 0 2 1
54.84 14.90 1.6742 3 3 1 2
54.84 14.90 1.6742 -3 3 1 2
54.84 7.45 1.6742 3 0 2 1
54.84 7.45 1.6742 -3 0 2 1
56.34 4.53 1.6330 12 0 0 1
56.34 4.51 1.6330 4 3 1 2
56.34 4.51 1.6330 -4 3 1 2
56.34 2.25 1.6330 4 0 2 1
56.34 2.25 1.6330 -4 0 2 1
57.12 22.59 1.6126 3 1 2 2
57.12 6.88 1.6126 -3 1 2 2
58.24 4.34 1.5842 5 3 1 2
58.24 4.34 1.5842 -5 3 1 2
58.24 2.17 1.5842 -5 0 2 1
58.24 2.17 1.5842 5 0 2 1
58.58 1.47 1.5757 4 1 2 2
58.58 1.47 1.5757 -4 1 2 2
58.79 1.94 1.5706 -9 2 1 2
58.79 1.70 1.5706 9 2 1 2
60.44 1.41 1.5317 5 1 2 2
60.44 1.41 1.5317 -5 1 2 2
60.50 7.38 1.5302 6 3 1 2
60.50 30.69 1.5302 -6 3 1 2
60.50 15.34 1.5302 6 0 2 1
60.50 3.69 1.5302 -6 0 2 1
61.85 1.75 1.5000 0 2 2 2
62.66 4.29 1.4827 6 1 2 2
62.66 4.29 1.4827 -6 1 2 2
63.12 2.30 1.4729 7 3 1 2
63.12 2.30 1.4729 -7 3 1 2
63.12 1.15 1.4729 7 0 2 1
63.12 1.15 1.4729 -7 0 2 1
65.03 4.58 1.4343 12 1 1 2
65.03 2.04 1.4343 -12 1 1 2
66.07 1.40 1.4142 -8 3 1 2
66.07 1.40 1.4142 8 3 1 2
68.88 5.45 1.3631 6 4 0 2
68.88 1.37 1.3631 6 2 2 2
68.88 1.14 1.3631 -6 2 2 2
69.33 4.04 1.3555 -9 3 1 2
69.33 4.04 1.3555 9 3 1 2
69.33 2.02 1.3555 -9 0 2 1
69.33 2.02 1.3555 9 0 2 1
69.83 11.67 1.3469 -3 4 1 2
69.83 3.65 1.3469 3 4 1 2
71.15 1.64 1.3252 12 2 1 2
71.15 1.64 1.3252 -12 2 1 2
71.33 1.10 1.3222 9 1 2 2
72.89 1.11 1.2978 10 3 1 2
72.89 1.11 1.2978 -10 3 1 2
74.30 2.66 1.2765 15 1 0 2
74.86 2.36 1.2684 6 4 1 2
74.86 2.36 1.2684 -6 4 1 2
76.75 1.48 1.2418 -11 3 1 2
76.75 1.48 1.2418 11 3 1 2
80.91 4.40 1.1882 12 3 1 2
80.91 21.06 1.1882 -12 3 1 2
80.91 2.20 1.1882 -12 0 2 1
80.91 10.53 1.1882 12 0 2 1
82.82 1.02 1.1655 -12 1 2 2
82.82 1.02 1.1655 12 1 2 2
85.37 2.05 1.1371 -13 3 1 2
85.37 2.05 1.1371 13 3 1 2
85.37 1.03 1.1371 -13 0 2 1
85.37 1.03 1.1371 13 0 2 1
85.85 3.54 1.1320 15 2 1 2
88.51 1.82 1.1047 -12 2 2 2
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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.