Pigeonite
Domeneghetti M C, Zema M, Tazzoli V
American Mineralogist 90 (2005) 1816-1823
Kinetics of Fe2+-Mg order-disorder in P2_1/c pigeonite
Locality: Parana, Brazil
Sample: N.35, annealed at T = 700 C for t = 180 min
_database_code_amcsd 0003968
CELL PARAMETERS: 9.7104 8.9417 5.2476 90.000 108.479 90.000
SPACE GROUP: P2_1/c
X-RAY WAVELENGTH: 1.541838
Cell Volume: 432.143
Density (g/cm3): 3.548
MAX. ABS. INTENSITY / VOLUME**2: 11.56702000
RIR: 1.062
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
13.80 2.85 6.4154 1 1 0 4
19.27 10.68 4.6049 2 0 0 2
20.02 10.43 4.4352 -1 1 1 4
20.42 3.52 4.3488 0 1 1 4
26.49 1.60 3.3641 -1 2 1 4
26.80 15.69 3.3260 0 2 1 4
27.81 50.26 3.2077 2 2 0 4
29.61 100.00 3.0165 -2 2 1 4
30.65 39.83 2.9173 -3 1 1 4
30.79 46.45 2.9036 3 1 0 4
34.85 45.84 2.5743 -1 3 1 4
35.09 1.88 2.5571 0 3 1 4
36.09 49.59 2.4885 0 0 2 2
36.52 27.38 2.4602 2 2 1 4
37.34 4.42 2.4082 -2 3 1 4
38.02 3.11 2.3665 1 3 1 4
40.38 13.62 2.2334 3 1 1 4
40.43 3.53 2.2309 1 0 2 2
40.69 2.26 2.2176 -2 2 2 4
41.53 4.79 2.1744 0 2 2 4
41.73 8.33 2.1645 1 1 2 4
42.15 37.39 2.1440 -3 3 1 4
42.26 2.94 2.1385 3 3 0 4
42.77 7.82 2.1142 -4 2 1 4
43.85 1.82 2.0644 -3 2 2 4
44.25 3.42 2.0469 4 2 0 4
44.33 15.14 2.0435 -4 0 2 2
44.43 10.35 2.0392 0 4 1 4
45.08 4.76 2.0110 2 4 0 4
45.53 1.24 1.9921 -4 1 2 4
46.29 4.01 1.9612 -2 4 1 4
46.67 10.80 1.9464 2 0 2 2
48.72 1.57 1.8691 -4 3 1 4
50.00 3.06 1.8241 3 3 1 4
50.60 3.47 1.8041 5 1 0 4
51.14 1.80 1.7860 1 3 2 4
51.19 9.47 1.7846 2 2 2 4
51.30 2.02 1.7809 2 4 1 4
52.10 11.26 1.7555 1 5 0 4
52.95 2.95 1.7294 4 2 1 4
53.94 1.95 1.6997 -1 1 3 4
54.56 3.57 1.6821 -2 4 2 4
54.89 3.80 1.6725 -3 1 3 4
55.24 1.39 1.6630 0 4 2 4
55.36 4.67 1.6596 3 1 2 4
56.55 18.32 1.6275 -2 2 3 4
56.63 25.43 1.6254 -5 3 1 4
59.77 3.41 1.5473 -3 5 1 4
59.85 5.13 1.5453 3 5 0 4
59.95 6.64 1.5431 -6 0 2 2
60.30 5.93 1.5350 6 0 0 2
61.52 4.48 1.5074 -2 3 3 4
61.99 14.26 1.4971 -1 3 3 4
62.30 12.62 1.4903 0 6 0 2
62.86 2.34 1.4784 -3 3 3 4
62.92 1.18 1.4772 -1 5 2 4
63.11 5.29 1.4732 4 0 2 2
63.36 2.08 1.4679 2 4 2 4
63.81 3.15 1.4587 -6 2 2 4
64.13 1.62 1.4522 0 5 2 4
65.86 5.23 1.4181 -3 5 2 4
66.11 2.10 1.4133 3 5 1 4
67.08 1.85 1.3954 1 5 2 4
67.31 27.25 1.3910 5 3 1 4
68.11 3.20 1.3767 -2 4 3 4
68.22 4.93 1.3747 1 3 3 4
68.56 1.26 1.3687 -7 1 1 4
69.27 1.84 1.3564 2 2 3 4
69.42 1.78 1.3539 -7 0 2 2
70.33 6.54 1.3386 -7 1 2 4
70.70 4.66 1.3325 -5 3 3 4
70.71 1.37 1.3322 0 4 3 4
72.34 2.07 1.3062 -3 0 4 2
72.63 1.78 1.3017 7 1 0 4
73.18 1.19 1.2934 6 2 1 4
73.23 1.67 1.2925 -3 1 4 4
73.79 1.16 1.2842 3 1 3 4
73.83 1.68 1.2835 5 1 2 4
74.17 10.24 1.2785 0 6 2 4
74.27 4.27 1.2769 -4 0 4 2
75.63 1.24 1.2574 -2 2 4 4
76.08 1.17 1.2511 4 6 0 4
76.57 2.19 1.2443 0 0 4 2
77.39 1.48 1.2331 -3 5 3 4
77.78 6.98 1.2279 3 5 2 4
79.62 2.00 1.2041 -4 6 2 4
81.31 1.60 1.1833 2 6 2 4
82.22 1.11 1.1725 7 1 1 4
82.69 1.01 1.1670 -8 2 1 4
82.98 1.80 1.1637 -6 0 4 2
84.08 1.57 1.1512 8 0 0 2
89.64 1.46 1.0937 -8 2 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.