Cummingtonite
Yang H, Hirschmann M M
American Mineralogist 80 (1995) 916-922
Crystal structure of P2_1/m ferromagnesian amphibole and the role of cation
ordering and composition in the P2_1/m - C2/m transition in cummingtonite
Sample: UH1, untreated
_database_code_amcsd 0001752
CELL PARAMETERS: 9.5015 18.1289 5.3089 90.000 102.090 90.000
SPACE GROUP: C2/m
X-RAY WAVELENGTH: 1.541838
Cell Volume: 894.184
Density (g/cm3): 3.197
MAX. ABS. INTENSITY / VOLUME**2: 6.280907745
RIR: 0.640
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
9.76 74.31 9.0645 0 2 0 2
10.70 86.31 8.2682 1 1 0 4
17.08 16.50 5.1911 0 0 1 2
17.51 7.42 5.0657 1 3 0 4
18.41 23.47 4.8196 -1 1 1 4
19.11 1.17 4.6454 2 0 0 2
19.59 14.43 4.5322 0 4 0 2
19.71 5.09 4.5047 0 2 1 4
21.49 23.98 4.1341 2 2 0 4
21.85 7.01 4.0682 1 1 1 4
22.86 6.20 3.8902 -2 0 1 2
23.09 41.21 3.8521 -1 3 1 4
25.94 51.54 3.4348 1 3 1 4
26.10 7.01 3.4141 0 4 1 4
26.39 1.32 3.3777 1 5 0 4
27.49 64.16 3.2440 2 4 0 4
28.34 6.09 3.1494 2 0 1 2
29.26 82.70 3.0527 3 1 0 4
29.56 4.18 3.0215 0 6 0 2
30.04 50.77 2.9749 2 2 1 4
30.28 4.51 2.9519 -2 4 1 4
30.45 10.26 2.9351 -1 5 1 4
30.76 1.54 2.9067 -3 1 1 4
32.49 14.65 2.7561 3 3 0 4
32.71 100.00 2.7375 1 5 1 4
33.86 10.28 2.6472 -3 3 1 4
34.23 4.32 2.6199 -1 1 2 4
34.34 54.27 2.6114 0 6 1 4
34.56 3.60 2.5956 0 0 2 2
34.68 1.68 2.5863 2 4 1 4
35.44 6.27 2.5328 2 6 0 4
35.93 69.41 2.4997 -2 0 2 2
35.99 3.24 2.4953 0 2 2 4
37.32 2.70 2.4098 -2 2 2 4
37.70 2.33 2.3863 -2 6 1 4
38.22 4.40 2.3548 3 5 0 4
39.03 1.09 2.3080 -4 0 1 2
39.17 11.13 2.2996 -1 7 1 4
39.42 24.71 2.2858 -3 5 1 4
39.78 3.25 2.2661 0 8 0 2
40.07 1.45 2.2500 4 2 0 4
40.32 16.54 2.2366 -4 2 1 4
40.72 15.92 2.2161 -3 1 2 4
40.83 1.17 2.2098 1 3 2 4
41.01 11.77 2.2008 1 7 1 4
41.24 4.79 2.1889 -2 4 2 4
41.41 49.72 2.1803 2 6 1 4
43.20 2.96 2.0944 -3 3 2 4
43.35 24.20 2.0873 2 0 2 2
43.58 3.81 2.0769 0 8 1 4
43.80 2.20 2.0671 4 4 0 4
44.48 4.82 2.0367 2 8 0 4
44.54 1.98 2.0341 2 2 2 4
44.72 13.05 2.0265 3 5 1 4
45.67 2.91 1.9867 3 7 0 4
45.67 1.65 1.9863 1 5 2 4
46.03 1.85 1.9718 4 0 1 2
46.10 1.94 1.9689 0 6 2 4
46.11 3.47 1.9686 1 9 0 4
46.37 1.97 1.9581 -2 8 1 4
46.70 12.18 1.9451 -4 0 2 2
46.71 5.08 1.9447 -3 7 1 4
47.19 1.22 1.9260 -2 6 2 4
47.83 3.01 1.9018 -4 2 2 4
47.84 2.80 1.9012 -3 5 2 4
48.74 9.58 1.8684 -1 9 1 4
49.30 4.51 1.8485 5 1 0 4
49.50 2.42 1.8415 4 6 0 4
49.56 2.31 1.8394 2 8 1 4
49.71 1.81 1.8341 -4 6 1 4
50.29 2.01 1.8142 1 9 1 4
51.10 11.77 1.7874 -4 4 2 4
51.45 2.67 1.7761 5 3 0 4
53.35 1.34 1.7174 2 6 2 4
53.46 3.24 1.7140 -2 2 3 4
53.69 6.95 1.7071 0 8 2 4
53.95 3.69 1.6997 0 2 3 4
54.01 7.78 1.6979 -1 3 3 4
54.24 1.41 1.6911 -3 7 2 4
54.62 10.35 1.6801 -5 1 2 4
54.67 3.18 1.6789 -2 8 2 4
55.05 3.69 1.6681 -5 5 1 4
55.25 1.12 1.6626 -3 9 1 4
55.66 38.93 1.6513 4 6 1 4
56.25 1.08 1.6355 -4 6 2 4
56.73 13.00 1.6227 1 11 0 4
56.76 2.18 1.6220 4 8 0 4
58.01 24.52 1.5900 -1 5 3 4
58.62 6.17 1.5747 4 0 2 2
58.77 5.76 1.5712 2 10 1 4
59.59 1.77 1.5515 4 2 2 4
59.72 6.84 1.5485 6 0 0 2
60.25 2.78 1.5360 1 9 2 4
61.34 18.07 1.5114 -2 6 3 4
61.37 17.87 1.5107 0 12 0 2
61.78 7.22 1.5016 0 6 3 4
61.99 3.24 1.4970 5 5 1 4
62.43 1.78 1.4875 4 8 1 4
62.43 6.60 1.4875 4 4 2 4
62.98 2.82 1.4760 -4 8 2 4
63.15 7.33 1.4724 -6 0 2 2
63.70 6.15 1.4608 -1 7 3 4
63.99 4.69 1.4549 3 11 0 4
65.47 3.92 1.4257 -4 10 1 4
66.87 1.72 1.3992 -1 11 2 4
66.93 39.02 1.3981 -6 6 1 4
67.43 1.85 1.3888 6 2 1 4
67.76 1.15 1.3829 -2 8 3 4
67.89 6.24 1.3806 -4 6 3 4
68.13 12.60 1.3763 5 1 2 4
69.16 7.35 1.3584 2 6 3 4
69.42 5.20 1.3539 1 11 2 4
69.91 2.79 1.3456 5 3 2 4
70.90 1.54 1.3292 -1 9 3 4
71.10 1.82 1.3260 -3 11 2 4
71.14 2.33 1.3252 -5 5 3 4
71.23 1.36 1.3238 -2 0 4 2
71.24 2.90 1.3237 7 1 0 4
71.25 1.46 1.3236 -6 6 2 4
71.45 2.89 1.3203 -1 1 4 4
72.38 3.69 1.3057 0 12 2 4
72.89 10.42 1.2978 0 0 4 2
73.10 1.26 1.2945 -6 8 1 4
73.16 1.20 1.2936 -7 1 2 4
73.17 2.38 1.2935 -5 9 2 4
73.20 21.15 1.2930 -2 12 2 4
73.82 1.30 1.2837 -6 2 3 4
74.45 1.01 1.2743 6 6 1 4
74.61 1.20 1.2720 1 9 3 4
74.70 3.99 1.2707 -2 4 4 4
74.75 3.18 1.2700 -7 5 1 4
74.88 1.89 1.2681 -7 3 2 4
75.00 2.70 1.2664 4 12 0 4
75.63 1.53 1.2574 -2 10 3 4
75.86 2.15 1.2542 4 2 3 4
76.03 1.03 1.2517 0 10 3 4
76.17 4.08 1.2499 -4 0 4 2
78.09 3.26 1.2238 2 12 2 4
78.23 1.65 1.2219 6 0 2 2
80.14 1.23 1.1976 2 14 1 4
80.50 2.04 1.1931 -4 12 2 4
80.99 3.31 1.1872 2 0 4 2
81.67 9.58 1.1790 -5 11 2 4
81.80 1.23 1.1775 -8 2 1 4
83.18 1.88 1.1613 8 0 0 2
83.22 1.92 1.1609 1 15 1 4
85.77 1.01 1.1328 6 6 2 4
87.35 1.22 1.1164 -6 0 4 2
87.45 1.32 1.1154 5 13 0 4
87.55 3.06 1.1144 3 1 4 4
88.15 2.15 1.1083 7 9 0 4
88.48 1.21 1.1050 3 13 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.