Piemontite
Nagashima M, Akasaka M
American Mineralogist 89 (2004) 1119-1129
An X-ray Rietveld study of piemontite on the join
Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis
Sample: q = 0.75, p = 0.75, Synthesis at P=200 MPa, T=500 C
_database_code_amcsd 0003587
CELL PARAMETERS: 8.8530 5.6596 10.1501 90.000 115.511 90.000
SPACE GROUP: P2_1/m
X-RAY WAVELENGTH: 1.541838
Cell Volume: 458.981
Density (g/cm3): 3.432
MAX. ABS. INTENSITY / VOLUME**2: 9.116005538
RIR: 0.865
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
9.66 1.56 9.1605 0 0 1 2
11.07 3.65 7.9899 1 0 0 2
11.13 2.81 7.9524 -1 0 1 2
17.59 1.01 5.0411 1 0 1 2
17.69 26.36 5.0129 -1 0 2 2
19.22 1.38 4.6183 1 1 0 4
19.25 3.89 4.6111 -1 1 1 4
22.25 16.63 3.9949 2 0 0 2
22.36 17.64 3.9762 -2 0 2 2
23.63 5.16 3.7643 1 1 1 4
23.71 2.41 3.7526 -1 1 2 4
25.55 31.22 3.4867 -2 1 1 4
26.27 11.06 3.3929 1 0 2 2
27.95 11.20 3.1925 2 0 1 2
29.25 4.18 3.0535 0 0 3 2
30.66 1.23 2.9161 -3 0 1 2
30.72 14.28 2.9107 -3 0 2 2
30.72 1.15 2.9100 1 1 2 4
30.82 100.00 2.9009 -1 1 3 4
31.62 37.94 2.8298 0 2 0 2
32.19 9.30 2.7806 2 1 1 4
32.34 2.90 2.7680 -2 1 3 4
33.34 27.91 2.6873 0 1 3 4
33.60 21.09 2.6674 1 2 0 4
33.65 16.86 2.6633 3 0 0 2
34.60 38.13 2.5923 -3 1 1 4
34.66 1.95 2.5884 -3 1 2 4
35.62 15.11 2.5206 2 0 2 2
35.84 2.87 2.5058 -1 0 4 2
36.46 9.36 2.4643 -1 2 2 4
37.35 24.30 2.4074 0 2 2 4
37.46 29.27 2.4005 -3 1 3 4
37.73 4.59 2.3842 -2 2 1 4
39.07 10.63 2.3055 -2 2 2 4
39.12 1.47 2.3025 2 1 2 4
39.21 5.88 2.2975 1 1 3 4
39.31 3.77 2.2918 -2 1 4 4
39.32 1.52 2.2916 -3 0 4 2
39.32 2.14 2.2913 -1 1 4 4
41.63 5.45 2.1694 -1 2 3 4
41.94 14.29 2.1543 -4 0 1 2
42.06 2.36 2.1484 -4 0 3 2
42.59 1.61 2.1229 0 1 4 4
42.70 17.69 2.1177 2 2 1 4
42.82 17.88 2.1121 -2 2 3 4
43.61 13.18 2.0756 0 2 3 4
44.43 6.70 2.0390 2 0 3 2
44.62 2.23 2.0308 -3 2 1 4
45.41 5.55 1.9975 4 0 0 2
45.80 1.31 1.9813 -1 0 5 2
46.52 1.63 1.9523 -3 0 5 2
47.39 3.87 1.9183 2 1 3 4
48.36 8.68 1.8822 2 2 2 4
48.52 11.80 1.8763 -2 2 4 4
48.53 5.77 1.8760 -1 2 4 4
48.57 3.97 1.8744 1 1 4 4
48.69 3.18 1.8700 -1 1 5 4
49.10 2.65 1.8554 3 1 2 4
49.65 1.31 1.8360 1 3 0 4
51.11 1.10 1.7872 3 2 1 4
51.32 2.10 1.7802 0 2 4 4
51.85 4.05 1.7634 -5 0 2 2
52.49 1.86 1.7433 -4 2 2 4
52.50 2.14 1.7430 0 1 5 4
52.75 3.64 1.7355 -2 3 1 4
53.80 5.16 1.7040 -4 1 5 4
54.31 3.06 1.6892 -2 0 6 2
54.51 2.36 1.6835 -5 1 2 4
54.57 1.71 1.6818 -5 1 3 4
54.95 3.24 1.6710 -3 0 6 2
55.81 10.26 1.6471 -1 3 3 4
56.13 1.05 1.6386 1 0 5 2
56.26 9.94 1.6350 -1 0 6 2
56.38 3.14 1.6319 4 2 0 4
56.41 10.87 1.6310 -5 1 1 4
56.58 14.17 1.6268 -4 2 4 4
56.61 6.43 1.6259 1 2 4 4
56.64 2.20 1.6250 2 1 4 4
56.67 1.40 1.6242 2 3 1 4
57.08 4.26 1.6134 3 2 2 4
57.42 4.27 1.6049 0 3 3 4
58.14 12.31 1.5867 -4 0 6 2
58.25 8.34 1.5840 -3 3 1 4
58.28 1.08 1.5831 -3 3 2 4
58.65 5.40 1.5740 1 1 5 4
60.17 2.97 1.5378 5 1 0 4
60.21 4.34 1.5370 -3 3 3 4
60.24 5.74 1.5363 4 1 2 4
60.65 1.03 1.5267 0 0 6 2
61.36 2.12 1.5109 -4 2 5 4
63.95 9.27 1.4559 -5 2 4 4
63.97 3.78 1.4553 -6 0 4 2
63.99 3.53 1.4550 2 2 4 4
64.03 1.75 1.4542 3 0 4 2
64.21 3.77 1.4505 -2 2 6 4
64.80 7.10 1.4388 -3 2 6 4
66.00 1.15 1.4155 4 0 3 2
66.03 20.50 1.4149 0 4 0 2
66.73 1.10 1.4017 -3 1 7 4
66.77 3.76 1.4010 2 1 5 4
67.03 1.09 1.3961 -2 1 7 4
67.29 2.56 1.3914 5 2 0 4
67.35 13.81 1.3903 4 2 2 4
68.60 1.55 1.3680 1 3 4 4
68.76 1.04 1.3653 -6 1 1 4
70.02 3.13 1.3437 0 2 6 4
70.25 1.89 1.3399 5 0 2 2
72.21 1.57 1.3083 -6 2 3 4
72.79 1.17 1.2992 -5 2 6 4
72.92 1.71 1.2973 -4 3 5 4
72.99 3.54 1.2961 -6 2 2 4
73.12 3.20 1.2942 -6 2 4 4
73.52 1.21 1.2882 -5 3 2 4
74.41 1.82 1.2750 0 1 7 4
74.43 1.36 1.2747 3 0 5 2
74.58 1.56 1.2725 -3 4 2 4
74.83 2.34 1.2688 -3 0 8 2
75.03 3.36 1.2659 4 2 3 4
75.15 5.07 1.2642 -5 3 1 4
75.43 1.23 1.2603 4 0 4 2
75.46 1.19 1.2598 -6 2 1 4
75.66 1.05 1.2570 2 0 6 2
75.71 4.00 1.2562 -6 2 5 4
76.17 1.02 1.2498 1 2 6 4
76.19 2.38 1.2495 3 4 0 4
77.09 2.39 1.2371 1 3 5 4
77.34 3.22 1.2338 2 4 2 4
78.43 1.36 1.2193 5 3 0 4
78.49 1.96 1.2186 4 3 2 4
79.28 2.65 1.2084 -6 1 7 4
80.94 1.59 1.1878 0 2 7 4
81.37 1.56 1.1826 -4 4 1 4
83.78 1.02 1.1546 4 4 0 4
84.40 1.80 1.1476 2 3 5 4
84.57 1.16 1.1458 -6 0 8 2
86.77 1.09 1.1223 0 1 8 4
87.10 1.89 1.1189 7 1 0 4
87.60 1.87 1.1138 -7 1 7 4
87.76 1.65 1.1122 -5 2 8 4
87.80 1.45 1.1117 -1 2 8 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.