Biotite
Ohta T, Takeda H, Takeuchi Y
American Mineralogist 67 (1982) 298-310
Mica polytypism: Similarities in the crystal structures of coexisting 1M and
2M(1) oxybiotite
_database_code_amcsd 0000861
CELL PARAMETERS: 5.3204 9.2100 10.1040 90.000 100.102 90.000
SPACE GROUP: C2/m
X-RAY WAVELENGTH: 1.541838
Cell Volume: 487.429
Density (g/cm3): 3.070
MAX. ABS. INTENSITY / VOLUME**2: 13.05498070
RIR: 1.385
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
8.89 100.00 9.9474 0 0 1 2
19.27 7.46 4.6050 0 2 0 2
19.50 5.65 4.5531 1 1 0 4
20.17 5.35 4.4018 -1 1 1 4
22.68 5.51 3.9200 1 1 1 4
24.41 30.65 3.6467 -1 1 2 4
26.38 34.43 3.3791 0 2 2 4
26.89 40.88 3.3158 0 0 3 2
28.53 37.09 3.1292 1 1 2 4
30.84 17.20 2.8989 -1 1 3 4
33.30 9.83 2.6908 0 2 3 4
33.83 1.93 2.6497 -2 0 1 2
33.84 4.41 2.6486 1 3 0 4
34.24 24.19 2.6190 2 0 0 2
34.25 46.87 2.6178 -1 3 1 4
35.85 2.80 2.5048 1 1 3 4
36.12 4.91 2.4868 0 0 4 2
37.00 14.03 2.4299 2 0 1 2
37.01 27.13 2.4289 -1 3 2 4
38.51 1.66 2.3376 -1 1 4 4
39.23 2.97 2.2966 -2 2 1 4
39.59 4.07 2.2765 2 2 0 4
39.95 3.45 2.2567 -2 0 3 2
39.96 6.75 2.2562 1 3 2 4
40.20 6.16 2.2432 0 4 1 4
41.01 3.99 2.2009 -2 2 2 4
41.70 10.55 2.1660 2 0 2 2
41.72 21.08 2.1652 -1 3 3 4
42.04 2.62 2.1491 2 2 1 4
45.60 4.99 1.9895 0 0 5 2
45.69 5.16 1.9856 -2 0 4 2
45.70 9.52 1.9853 1 3 3 4
47.89 2.24 1.8995 2 0 3 2
47.90 4.32 1.8989 -1 3 4 4
52.67 1.06 1.7377 1 5 0 4
54.10 2.57 1.6951 1 5 1 4
54.30 1.49 1.6895 0 4 4 4
54.94 3.88 1.6713 2 4 1 4
55.22 9.74 1.6635 2 0 4 2
55.23 18.57 1.6631 -1 3 5 4
55.42 1.49 1.6579 0 0 6 2
55.94 1.24 1.6437 3 1 1 4
55.95 3.10 1.6436 -3 1 3 4
57.15 3.29 1.6117 -2 4 3 4
57.16 2.39 1.6115 1 5 2 4
58.50 1.58 1.5776 2 4 2 4
58.52 2.57 1.5773 -1 5 3 4
60.00 1.54 1.5418 3 1 2 4
60.01 1.48 1.5417 -3 1 4 4
60.27 19.99 1.5357 -3 3 1 4
60.29 9.62 1.5350 0 6 0 2
60.64 5.59 1.5271 -2 0 6 2
60.64 11.17 1.5270 1 3 5 4
61.06 2.73 1.5177 3 3 0 4
61.06 2.98 1.5176 -3 3 2 4
61.08 2.60 1.5170 0 6 1 4
63.50 1.89 1.4649 -1 3 6 4
65.71 1.43 1.4211 0 0 7 2
67.18 1.03 1.3935 3 3 2 4
69.50 4.68 1.3524 -2 0 7 2
69.51 9.01 1.3524 1 3 6 4
69.92 1.00 1.3454 0 4 6 4
70.96 2.05 1.3282 -2 6 1 4
71.17 3.11 1.3248 -4 0 2 2
71.20 6.18 1.3243 2 6 0 4
72.31 2.76 1.3067 3 3 3 4
72.32 2.85 1.3065 -3 3 5 4
72.34 2.68 1.3062 0 6 4 4
72.86 2.19 1.2982 -4 0 3 2
72.89 3.82 1.2977 2 6 1 4
72.90 1.90 1.2976 -2 2 7 4
74.76 1.34 1.2698 4 0 1 2
74.80 2.45 1.2692 -2 6 3 4
75.99 2.07 1.2524 2 2 6 4
76.23 1.70 1.2490 -1 7 2 4
76.63 1.24 1.2434 0 0 8 2
77.08 1.99 1.2374 -3 5 3 4
78.07 1.27 1.2241 4 2 1 4
78.11 1.10 1.2235 1 7 2 4
79.21 1.67 1.2093 0 4 7 4
80.44 1.24 1.1939 2 6 3 4
86.19 2.47 1.1284 -4 0 6 2
86.21 4.64 1.1281 2 6 4 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.