Pyroxene-ideal
Thompson R M, Downs R T
American Mineralogist 89 (2004) 614-628
Model pyroxenes II: Structural variation as a function of tetrahedral rotation
model spodumene after Arlt and Angel (2003)
with O3-O3-O3 angle = 189.9 and model oxygen radius = 1.263
_database_code_amcsd 0003489
CELL PARAMETERS: 9.5720 8.7150 5.0320 90.000 112.100 90.000
SPACE GROUP: C2/c
X-RAY WAVELENGTH: 1.541838
Cell Volume: 388.928
Density (g/cm3): 3.178
MAX. ABS. INTENSITY / VOLUME**2: 11.20129844
RIR: 1.148
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
20.02 9.85 4.4344 2 0 0 2
20.38 54.35 4.3575 0 2 0 2
20.58 4.52 4.3158 -1 1 1 4
26.76 33.33 3.3318 1 1 1 4
28.03 34.59 3.1835 0 2 1 4
28.72 3.21 3.1080 2 2 0 4
30.06 100.00 2.9731 -2 2 1 4
30.85 9.10 2.8988 -3 1 1 4
31.97 54.04 2.7996 3 1 0 4
32.43 4.82 2.7607 1 3 0 4
36.16 8.39 2.4839 -2 0 2 2
37.46 1.59 2.4007 -1 1 2 4
38.62 36.99 2.3311 0 0 2 2
38.83 6.92 2.3192 2 2 1 4
40.69 7.43 2.2172 4 0 0 2
41.86 2.64 2.1579 -2 2 2 4
42.83 12.97 2.1113 -3 3 1 4
43.22 2.69 2.0934 3 1 1 4
43.33 1.57 2.0883 -4 2 1 4
43.69 2.44 2.0720 3 3 0 4
44.56 4.08 2.0334 -4 0 2 2
44.99 4.12 2.0150 1 1 2 4
45.98 5.91 1.9739 0 4 1 4
47.33 25.78 1.9205 -2 4 1 4
48.70 4.34 1.8698 -5 1 1 4
49.46 3.47 1.8426 -4 2 2 4
50.63 1.71 1.8029 2 0 2 2
50.64 1.10 1.8026 -3 3 2 4
52.66 1.19 1.7381 5 1 0 4
53.58 3.30 1.7103 1 5 0 4
53.76 2.26 1.7052 2 4 1 4
54.41 1.11 1.6864 1 3 2 4
55.13 1.93 1.6659 2 2 2 4
56.16 2.20 1.6379 -2 4 2 4
56.33 5.74 1.6332 4 2 1 4
57.67 16.81 1.5985 -5 3 1 4
57.94 1.31 1.5918 0 4 2 4
58.85 2.68 1.5693 1 5 1 4
59.03 14.61 1.5648 -2 2 3 4
59.48 3.67 1.5540 4 4 0 4
60.01 9.93 1.5416 3 1 2 4
60.21 1.97 1.5369 -6 0 2 2
61.79 1.29 1.5015 3 5 0 4
62.48 1.60 1.4866 -4 4 2 4
62.87 5.21 1.4781 6 0 0 2
63.97 1.80 1.4554 -5 1 3 4
64.11 8.32 1.4525 0 6 0 2
64.27 1.02 1.4494 -6 2 2 4
64.81 4.12 1.4386 -3 3 3 4
65.28 2.73 1.4293 -1 5 2 4
65.66 2.75 1.4220 1 1 3 4
67.43 1.64 1.3889 -3 5 2 4
68.49 2.61 1.3699 4 4 1 4
70.86 9.20 1.3299 -7 1 2 4
70.93 7.94 1.3288 -2 4 3 4
71.43 11.44 1.3207 5 3 1 4
71.72 1.30 1.3160 -5 3 3 4
73.32 2.23 1.2912 1 3 3 4
73.48 1.61 1.2888 -5 5 1 4
75.88 4.99 1.2539 -2 6 2 4
75.89 1.65 1.2538 7 1 0 4
76.25 1.46 1.2487 -2 0 4 2
76.65 1.39 1.2432 5 5 0 4
76.74 5.74 1.2419 -4 0 4 2
77.42 7.87 1.2328 0 6 2 4
77.56 2.43 1.2308 -7 3 1 4
79.58 2.91 1.2046 -1 1 4 4
80.12 1.28 1.1978 5 1 2 4
80.40 1.75 1.1944 -4 2 4 4
81.42 1.66 1.1819 -4 6 2 4
82.86 2.21 1.1650 3 5 2 4
85.37 1.13 1.1371 -7 3 3 4
85.93 2.36 1.1311 2 6 2 4
87.56 1.01 1.1142 -1 7 2 4
87.90 1.36 1.1108 1 5 3 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.