Pyroxene-ideal
Thompson R M, Downs R T
American Mineralogist 88 (2003) 653-666
Model pyroxenes I: Ideal pyroxene topologies
Pyroxene #10 based on stacking sequence ABACBABC. Ideal analogue to orthopyroxene.
Note: Atoms Mg, Si, and O are assigned to atomic positions just for convenience.
_database_code_amcsd 0003008
CELL PARAMETERS: 13.0639 6.0000 3.4641 90.000 90.000 90.000
SPACE GROUP: P2_1ca
X-RAY WAVELENGTH: 1.541838
Cell Volume: 271.529
Density (g/cm3): 9.821
MAX. ABS. INTENSITY / VOLUME**2: 17.00443042
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 2 1 0 2
27.31 4.32 3.2660 4 0 0 1
29.78 9.18 3.0000 0 2 0 2
29.78 3.24 3.0000 0 1 1 4
30.57 3.78 2.9239 1 1 1 4
32.85 13.69 2.7262 2 1 1 4
40.37 16.17 2.2344 1 2 1 4
40.84 30.30 2.2094 4 2 0 2
40.84 3.22 2.2094 4 1 1 4
42.18 17.96 2.1423 2 2 1 4
44.25 100.00 2.0467 6 1 0 2
45.07 24.34 2.0114 3 2 1 4
46.07 15.05 1.9703 5 1 1 4
48.89 33.41 1.8628 4 2 1 4
51.89 10.34 1.7621 6 1 1 4
53.36 32.86 1.7170 1 3 1 4
53.36 16.43 1.7170 1 0 2 2
53.50 21.85 1.7126 5 2 1 4
54.84 50.89 1.6742 2 3 1 4
54.84 25.44 1.6742 2 0 2 2
55.68 5.97 1.6508 1 1 2 4
56.34 4.58 1.6330 8 0 0 1
57.12 6.85 1.6126 2 1 2 4
57.24 8.15 1.6094 3 3 1 4
57.24 4.07 1.6094 3 0 2 2
58.22 5.73 1.5847 7 1 1 4
59.46 9.87 1.5545 3 1 2 4
60.50 7.89 1.5302 4 3 1 4
60.50 3.94 1.5302 4 0 2 2
62.66 14.63 1.4827 4 1 2 4
63.65 1.69 1.4619 2 2 2 4
64.55 11.89 1.4436 5 3 1 4
64.55 5.95 1.4436 5 0 2 2
64.68 2.38 1.4410 7 2 1 4
65.03 1.58 1.4343 8 1 1 4
66.63 10.56 1.4036 5 1 2 4
68.55 3.19 1.3689 1 4 1 4
68.88 5.52 1.3631 4 4 0 2
69.33 13.80 1.3555 6 3 1 4
69.33 6.90 1.3555 6 0 2 2
69.83 3.57 1.3469 2 4 1 4
71.15 5.61 1.3252 8 2 1 4
71.94 5.21 1.3125 3 4 1 4
72.69 3.40 1.3009 5 2 2 4
74.30 2.69 1.2765 10 1 0 2
74.78 1.28 1.2695 7 3 1 4
74.86 8.04 1.2684 4 4 1 4
76.73 1.33 1.2420 7 1 2 4
77.23 2.73 1.2352 6 2 2 4
78.55 6.23 1.2178 5 4 1 4
80.91 5.50 1.1882 8 3 1 4
80.91 2.75 1.1882 8 0 2 2
82.50 1.87 1.1692 7 2 2 4
82.82 3.48 1.1655 8 1 2 4
87.73 11.09 1.1125 9 3 1 4
87.73 5.54 1.1125 9 0 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.