Pyroxene-ideal
Thompson R M, Downs R T
American Mineralogist 88 (2003) 653-666
Model pyroxenes I: Ideal pyroxene topologies
Pyroxene #26 based on stacking sequence ABABABABACAC
Note: Atoms Mg, Si, and O are assigned to atomic positions just for convenience.
_database_code_amcsd 0003033
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: 17.59507713
RIR: 0.583
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
20.10 1.24 4.4188 3 1 0 2
27.31 4.18 3.2660 6 0 0 1
29.78 8.87 3.0000 0 2 0 2
29.78 16.72 3.0000 0 1 1 2
30.14 10.87 2.9654 -1 1 1 2
30.14 10.87 2.9654 1 1 1 2
31.18 2.31 2.8685 -2 1 1 2
31.18 2.31 2.8685 2 1 1 2
40.84 29.28 2.2094 6 2 0 2
40.84 5.62 2.2094 6 1 1 2
40.84 7.31 2.2094 -6 1 1 2
40.84 5.51 2.2094 -2 2 1 2
40.84 5.51 2.2094 2 2 1 2
42.18 17.47 2.1423 3 2 1 2
42.18 58.13 2.1423 -3 2 1 2
44.00 10.96 2.0580 4 2 1 2
44.00 10.96 2.0580 -4 2 1 2
44.25 96.64 2.0467 9 1 0 2
44.25 1.68 2.0467 7 1 1 2
44.25 1.68 2.0467 -7 1 1 2
46.25 3.33 1.9629 5 2 1 2
46.25 3.33 1.9629 -5 2 1 2
51.89 1.31 1.7621 7 2 1 2
51.89 1.31 1.7621 -7 2 1 2
52.86 1.54 1.7321 0 3 1 2
53.08 2.78 1.7253 -1 3 1 2
53.08 2.78 1.7253 1 3 1 2
53.08 1.39 1.7253 -1 0 2 1
53.08 1.39 1.7253 1 0 2 1
53.74 2.25 1.7056 -2 3 1 2
53.74 2.25 1.7056 2 3 1 2
53.74 1.13 1.7056 -2 0 2 1
53.74 1.13 1.7056 2 0 2 1
55.20 1.43 1.6641 -8 2 1 2
55.20 1.43 1.6641 8 2 1 2
56.06 2.00 1.6406 -2 1 2 2
56.06 2.00 1.6406 2 1 2 2
56.34 4.43 1.6330 12 0 0 1
56.34 4.41 1.6330 4 3 1 2
56.34 4.41 1.6330 -4 3 1 2
56.34 2.20 1.6330 4 0 2 1
56.34 2.20 1.6330 -4 0 2 1
57.12 22.08 1.6126 3 1 2 2
57.12 6.72 1.6126 -3 1 2 2
58.24 12.74 1.5842 5 3 1 2
58.24 12.74 1.5842 -5 3 1 2
58.24 6.37 1.5842 -5 0 2 1
58.24 6.37 1.5842 5 0 2 1
58.58 4.31 1.5757 4 1 2 2
58.58 4.31 1.5757 -4 1 2 2
58.79 1.90 1.5706 -9 2 1 2
58.79 1.67 1.5706 9 2 1 2
60.44 1.12 1.5317 11 1 1 2
60.44 1.12 1.5317 -11 1 1 2
60.44 1.38 1.5317 5 1 2 2
60.44 1.38 1.5317 -5 1 2 2
60.50 7.22 1.5302 6 3 1 2
60.50 30.00 1.5302 -6 3 1 2
60.50 15.00 1.5302 6 0 2 1
60.50 3.61 1.5302 -6 0 2 1
61.85 1.71 1.5000 0 2 2 2
62.06 1.14 1.4956 -1 2 2 2
62.06 1.14 1.4956 1 2 2 2
63.12 6.73 1.4729 7 3 1 2
63.12 6.73 1.4729 -7 3 1 2
63.12 3.37 1.4729 7 0 2 1
63.12 3.37 1.4729 -7 0 2 1
65.03 4.48 1.4343 12 1 1 2
65.03 2.00 1.4343 -12 1 1 2
66.07 1.37 1.4142 -8 3 1 2
66.07 1.37 1.4142 8 3 1 2
68.88 5.33 1.3631 6 4 0 2
68.88 1.00 1.3631 -2 4 1 2
68.88 1.00 1.3631 2 4 1 2
68.88 1.34 1.3631 6 2 2 2
68.88 1.11 1.3631 -6 2 2 2
69.83 11.41 1.3469 -3 4 1 2
69.83 3.57 1.3469 3 4 1 2
71.15 2.23 1.3252 4 4 1 2
71.15 2.23 1.3252 -4 4 1 2
71.33 1.08 1.3222 9 1 2 2
72.89 1.08 1.2978 10 3 1 2
72.89 1.08 1.2978 -10 3 1 2
74.30 2.60 1.2765 15 1 0 2
76.75 4.33 1.2418 -11 3 1 2
76.75 4.33 1.2418 11 3 1 2
76.75 2.17 1.2418 11 0 2 1
76.75 2.17 1.2418 -11 0 2 1
80.67 1.57 1.1911 14 2 1 2
80.67 1.57 1.1911 -14 2 1 2
80.91 4.30 1.1882 12 3 1 2
80.91 20.59 1.1882 -12 3 1 2
80.91 2.15 1.1882 -12 0 2 1
80.91 10.29 1.1882 12 0 2 1
85.37 6.02 1.1371 -13 3 1 2
85.37 6.02 1.1371 13 3 1 2
85.37 3.01 1.1371 -13 0 2 1
85.37 3.01 1.1371 13 0 2 1
85.85 3.46 1.1320 15 2 1 2
88.51 1.78 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.