Pigeonite
Camara F, Carpenter M A, Domeneghetti M C, Tazzoli V
Physics and Chemistry of Minerals 29 (2002) 331-340
Non-convergent ordering and displacive phase transition in pigeonite:
in situ HT XRD study
Sample: hgi, T = 850 C
Locality: from rhyodacite, Parana, Brazil
_database_code_amcsd 0008640
CELL PARAMETERS: 9.8400 9.0210 5.3184 90.000 109.350 90.000
SPACE GROUP: P2_1/c
X-RAY WAVELENGTH: 1.541838
Cell Volume: 445.429
Density (g/cm3): 3.449
MAX. ABS. INTENSITY / VOLUME**2: 11.93991573
RIR: 1.127
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
13.69 4.77 6.4698 1 1 0 4
19.12 8.11 4.6421 2 0 0 2
19.73 7.85 4.5001 -1 1 1 4
26.57 16.85 3.3545 0 2 1 4
27.57 44.23 3.2349 2 2 0 4
29.19 100.00 3.0596 -2 2 1 4
30.14 34.08 2.9651 -3 1 1 4
30.54 42.86 2.9273 3 1 0 4
34.47 40.16 2.6021 -1 3 1 4
35.79 43.30 2.5090 0 0 2 2
36.35 23.59 2.4714 2 2 1 4
37.75 3.85 2.3827 1 3 1 4
40.07 1.30 2.2501 -2 2 2 4
40.24 10.35 2.2412 3 1 1 4
41.17 4.69 2.1926 0 2 2 4
41.50 8.50 2.1760 1 1 2 4
41.59 29.64 2.1716 -3 3 1 4
41.89 2.45 2.1566 3 3 0 4
42.15 6.59 2.1438 -4 2 1 4
43.46 14.91 2.0820 -4 0 2 2
43.87 2.22 2.0638 4 2 0 4
44.02 9.68 2.0570 0 4 1 4
44.67 2.96 2.0285 2 4 0 4
45.75 4.63 1.9831 -2 4 1 4
46.50 8.10 1.9531 2 0 2 2
48.92 1.00 1.8617 -3 3 2 4
49.72 1.95 1.8337 3 3 1 4
50.16 2.92 1.8187 5 1 0 4
50.79 1.55 1.7975 1 3 2 4
50.94 1.83 1.7926 2 4 1 4
50.95 7.29 1.7923 2 2 2 4
51.61 9.82 1.7711 1 5 0 4
52.69 2.57 1.7371 4 2 1 4
53.31 1.51 1.7184 -1 1 3 4
53.85 3.46 1.7026 -2 4 2 4
53.94 2.41 1.6998 -3 1 3 4
54.73 2.22 1.6773 0 4 2 4
55.18 4.04 1.6646 3 1 2 4
55.74 16.02 1.6493 -2 2 3 4
55.87 20.66 1.6457 -5 3 1 4
56.93 1.06 1.6175 4 4 0 4
58.83 4.60 1.5698 -6 0 2 2
59.05 3.30 1.5643 -3 5 1 4
59.29 3.08 1.5587 3 5 0 4
59.76 4.12 1.5474 6 0 0 2
61.27 10.51 1.5128 -1 3 3 4
61.69 8.35 1.5035 0 6 0 2
61.85 3.01 1.5000 -3 3 3 4
62.66 2.92 1.4825 -6 2 2 4
62.92 3.66 1.4772 4 0 2 2
62.96 1.25 1.4764 2 4 2 4
64.95 4.73 1.4357 -3 5 2 4
65.62 1.77 1.4228 3 5 1 4
66.92 18.46 1.3983 5 3 1 4
67.19 2.46 1.3933 -2 4 3 4
67.72 3.24 1.3837 1 3 3 4
68.89 1.47 1.3629 2 2 3 4
69.05 5.75 1.3602 -7 1 2 4
69.36 3.86 1.3550 -5 3 3 4
71.96 1.60 1.3122 7 1 0 4
72.01 1.88 1.3114 -3 1 4 4
72.87 4.27 1.2981 -4 0 4 2
73.42 8.51 1.2897 0 6 2 4
73.58 1.18 1.2873 5 1 2 4
74.55 1.53 1.2729 -2 2 4 4
75.31 1.08 1.2619 4 6 0 4
75.83 1.94 1.2545 0 0 4 2
77.26 5.22 1.2348 3 5 2 4
78.46 1.35 1.2189 -4 6 2 4
81.14 1.50 1.1854 -6 0 4 2
89.60 1.40 1.0941 -7 -5 2 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.