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 = 1.1, p = 1.03, Synthesis at P=350 MPa, T=500 C
_database_code_amcsd 0003592
CELL PARAMETERS: 8.8600 5.6818 10.1670 90.000 115.511 90.000
SPACE GROUP: P2_1/m
X-RAY WAVELENGTH: 1.541838
Cell Volume: 461.914
Density (g/cm3): 3.466
MAX. ABS. INTENSITY / VOLUME**2: 9.573053969
RIR: 0.899
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
9.64 4.51 9.1757 0 0 1 2
11.07 2.24 7.9962 1 0 0 2
11.11 6.52 7.9613 -1 0 1 2
17.66 25.40 5.0208 -1 0 2 2
19.16 1.55 4.6316 1 1 0 4
19.19 4.56 4.6248 -1 1 1 4
22.24 15.16 3.9981 2 0 0 2
22.33 19.04 3.9806 -2 0 2 2
23.58 4.78 3.7734 1 1 1 4
23.65 2.17 3.7623 -1 1 2 4
25.50 32.00 3.4936 -2 1 1 4
26.23 11.42 3.3976 1 0 2 2
27.92 8.28 3.1957 2 0 1 2
29.20 4.36 3.0586 0 0 3 2
30.63 2.19 2.9183 -3 0 1 2
30.66 2.25 2.9160 1 1 2 4
30.69 12.96 2.9132 -3 0 2 2
30.75 100.00 2.9075 -1 1 3 4
31.49 37.30 2.8409 0 2 0 2
32.14 7.20 2.7854 2 1 1 4
32.28 2.59 2.7736 -2 1 3 4
33.27 28.29 2.6932 0 1 3 4
33.47 21.74 2.6770 1 2 0 4
33.62 16.44 2.6654 3 0 0 2
34.55 40.62 2.5959 -3 1 1 4
34.60 1.46 2.5923 -3 1 2 4
35.58 16.39 2.5235 2 0 2 2
35.77 1.59 2.5101 -1 0 4 2
36.29 1.27 2.4757 1 2 1 4
36.33 8.15 2.4725 -1 2 2 4
37.23 25.00 2.4153 0 2 2 4
37.40 32.04 2.4044 -3 1 3 4
37.61 3.12 2.3914 -2 2 1 4
38.95 10.33 2.3124 -2 2 2 4
39.06 2.36 2.3063 2 1 2 4
39.13 5.96 2.3019 1 1 3 4
39.23 5.60 2.2963 -2 1 4 4
39.24 1.41 2.2960 -1 1 4 4
39.26 2.16 2.2947 -3 0 4 2
41.50 6.40 2.1759 -1 2 3 4
41.90 16.39 2.1559 -4 0 1 2
42.02 2.74 2.1504 -4 0 3 2
42.50 1.62 2.1271 0 1 4 4
42.58 15.95 2.1232 2 2 1 4
42.69 17.38 2.1180 -2 2 3 4
43.48 13.69 2.0815 0 2 3 4
44.37 6.78 2.0417 2 0 3 2
44.51 2.03 2.0356 -3 2 1 4
45.37 5.79 1.9990 4 0 0 2
45.71 1.00 1.9847 -1 0 5 2
47.31 4.69 1.9214 2 1 3 4
48.24 8.40 1.8867 2 2 2 4
48.39 10.14 1.8812 -2 2 4 4
48.39 6.61 1.8810 -1 2 4 4
48.48 3.76 1.8777 1 1 4 4
48.59 3.61 1.8737 -1 1 5 4
49.03 2.49 1.8580 3 1 2 4
49.46 1.61 1.8429 1 3 0 4
50.99 1.19 1.7910 3 2 1 4
51.18 1.98 1.7847 0 2 4 4
51.81 4.70 1.7647 -5 0 2 2
52.38 1.92 1.7468 -4 2 2 4
52.39 2.16 1.7463 0 1 5 4
52.55 3.43 1.7415 -2 3 1 4
53.71 4.70 1.7066 -4 1 5 4
54.21 3.07 1.6921 -2 0 6 2
54.44 1.69 1.6853 -5 1 2 4
54.50 1.90 1.6837 -5 1 3 4
54.86 3.04 1.6736 -3 0 6 2
55.61 9.88 1.6527 -1 3 3 4
56.03 1.00 1.6412 1 0 5 2
56.16 10.97 1.6378 -1 0 6 2
56.27 2.70 1.6349 4 2 0 4
56.35 9.80 1.6327 -5 1 1 4
56.45 15.56 1.6301 -4 2 4 4
56.47 6.75 1.6296 1 2 4 4
56.48 1.23 1.6293 2 3 1 4
56.52 1.07 1.6282 -5 1 4 4
56.54 2.37 1.6276 2 1 4 4
56.77 1.07 1.6217 -2 1 6 4
56.96 5.14 1.6167 3 2 2 4
57.21 4.14 1.6102 0 3 3 4
58.05 11.90 1.5890 -4 0 6 2
58.06 9.20 1.5887 -3 3 1 4
58.54 4.51 1.5767 1 1 5 4
60.01 4.60 1.5416 -3 3 3 4
60.10 1.98 1.5394 5 1 0 4
60.16 6.04 1.5382 4 1 2 4
60.54 1.04 1.5293 0 0 6 2
61.22 1.66 1.5140 -4 2 5 4
63.54 1.13 1.4643 -5 0 6 2
63.82 9.21 1.4584 -5 2 4 4
63.84 3.72 1.4580 2 2 4 4
63.91 4.08 1.4566 -6 0 4 2
63.94 1.84 1.4561 3 0 4 2
64.05 3.94 1.4538 -2 2 6 4
64.64 6.25 1.4420 -3 2 6 4
65.74 20.12 1.4204 0 4 0 2
66.60 1.16 1.4042 -3 1 7 4
66.65 3.63 1.4032 2 1 5 4
67.17 2.90 1.3936 5 2 0 4
67.22 13.52 1.3927 4 2 2 4
67.45 1.14 1.3885 2 3 3 4
68.39 1.44 1.3718 1 3 4 4
68.61 1.16 1.3678 -4 1 7 4
69.85 3.25 1.3466 0 2 6 4
70.17 1.63 1.3412 5 0 2 2
72.09 1.12 1.3102 -6 2 3 4
72.70 1.58 1.3006 -4 3 5 4
72.87 3.97 1.2980 -6 2 2 4
72.99 4.00 1.2962 -6 2 4 4
74.25 1.87 1.2773 0 1 7 4
74.29 1.45 1.2768 -3 4 2 4
74.31 1.68 1.2764 3 0 5 2
74.69 2.64 1.2709 -3 0 8 2
74.88 3.25 1.2680 4 2 3 4
74.96 4.88 1.2670 -5 3 1 4
75.32 1.34 1.2618 4 0 4 2
75.34 1.21 1.2615 -6 2 1 4
75.57 2.78 1.2582 -6 2 5 4
75.90 2.39 1.2536 3 4 0 4
76.86 2.01 1.2403 1 3 5 4
77.04 3.38 1.2378 2 4 2 4
78.28 1.92 1.2213 4 3 2 4
79.15 2.51 1.2101 -6 1 7 4
79.77 1.02 1.2022 -6 2 6 4
80.74 1.19 1.1902 0 2 7 4
81.07 1.83 1.1861 -4 4 1 4
83.49 1.09 1.1579 4 4 0 4
84.16 1.89 1.1504 2 3 5 4
84.43 1.19 1.1473 -6 0 8 2
86.58 1.15 1.1243 0 1 8 4
87.00 1.52 1.1199 7 1 0 4
87.46 2.09 1.1152 -7 1 7 4
87.56 1.61 1.1142 -5 2 8 4
87.58 1.40 1.1140 -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.