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 = 0.5, p = 0.5, Synthesis at P=350 MPa, T=500 C
_database_code_amcsd 0003586
CELL PARAMETERS: 8.8560 5.6291 10.1480 90.000 115.516 90.000
SPACE GROUP: P2_1/m
X-RAY WAVELENGTH: 1.541838
Cell Volume: 456.549
Density (g/cm3): 3.383
MAX. ABS. INTENSITY / VOLUME**2: 8.820354657
RIR: 0.849
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
11.07 3.96 7.9922 1 0 0 2
11.12 1.30 7.9536 -1 0 1 2
17.70 27.22 5.0122 -1 0 2 2
18.50 2.32 4.7956 0 1 1 4
19.32 2.79 4.5948 -1 1 1 4
22.25 18.76 3.9961 2 0 0 2
22.36 12.33 3.9768 -2 0 2 2
23.69 6.42 3.7554 1 1 1 4
23.77 1.67 3.7433 -1 1 2 4
25.60 27.88 3.4802 -2 1 1 4
26.27 10.25 3.3925 1 0 2 2
27.94 13.72 3.1930 2 0 1 2
28.12 1.50 3.1733 -2 0 3 2
29.25 4.45 3.0527 0 0 3 2
30.65 1.38 2.9172 -3 0 1 2
30.71 14.55 2.9115 -3 0 2 2
30.87 100.00 2.8963 -1 1 3 4
31.79 37.64 2.8145 0 2 0 2
32.23 10.70 2.7773 2 1 1 4
32.39 2.14 2.7643 -2 1 3 4
33.39 25.82 2.6835 0 1 3 4
33.64 16.83 2.6641 3 0 0 2
33.76 18.95 2.6547 1 2 0 4
34.63 36.30 2.5900 -3 1 1 4
34.69 1.66 2.5861 -3 1 2 4
35.62 12.64 2.5206 2 0 2 2
35.84 3.63 2.5052 -1 0 4 2
36.62 9.38 2.4541 -1 2 2 4
37.50 27.33 2.3985 -3 1 3 4
37.51 25.28 2.3978 0 2 2 4
37.88 3.67 2.3753 -2 2 1 4
39.16 1.71 2.3005 2 1 2 4
39.21 10.57 2.2974 -2 2 2 4
39.25 5.06 2.2952 1 1 3 4
39.36 2.40 2.2894 -2 1 4 4
39.37 1.80 2.2888 -1 1 4 4
41.77 4.53 2.1623 -1 2 3 4
41.92 12.42 2.1550 -4 0 1 2
42.05 3.43 2.1489 -4 0 3 2
42.63 1.57 2.1208 0 1 4 4
42.83 19.83 2.1114 2 2 1 4
42.95 17.52 2.1057 -2 2 3 4
43.75 12.23 2.0693 0 2 3 4
43.95 1.32 2.0603 -4 1 2 4
44.43 6.35 2.0389 2 0 3 2
44.74 2.90 2.0255 -3 2 1 4
44.79 1.84 2.0236 -3 2 2 4
45.39 6.11 1.9981 4 0 0 2
45.81 1.36 1.9808 -1 0 5 2
46.52 1.95 1.9521 -3 0 5 2
47.42 2.48 1.9170 2 1 3 4
48.48 8.47 1.8777 2 2 2 4
48.61 5.21 1.8730 1 1 4 4
48.65 13.17 1.8717 -2 2 4 4
48.66 5.25 1.8713 -1 2 4 4
48.74 3.86 1.8685 -1 1 5 4
49.13 2.51 1.8545 3 1 2 4
51.45 1.78 1.7761 0 2 4 4
51.83 3.62 1.7640 -5 0 2 2
52.54 2.25 1.7418 0 1 5 4
52.59 1.30 1.7401 -4 2 2 4
53.00 3.10 1.7276 -2 3 1 4
53.82 4.79 1.7032 -4 1 5 4
54.32 3.00 1.6889 -2 0 6 2
54.51 2.20 1.6833 -5 1 2 4
54.58 1.89 1.6815 -5 1 3 4
54.96 3.02 1.6707 -3 0 6 2
56.07 11.15 1.6403 -1 3 3 4
56.14 1.06 1.6383 1 0 5 2
56.28 9.01 1.6346 -1 0 6 2
56.42 11.44 1.6308 -5 1 1 4
56.48 3.27 1.6293 4 2 0 4
56.68 2.08 1.6241 2 1 4 4
56.68 11.57 1.6240 -4 2 4 4
56.73 6.40 1.6228 1 2 4 4
56.92 1.58 1.6177 2 3 1 4
57.19 3.65 1.6107 3 2 2 4
57.67 4.09 1.5985 0 3 3 4
58.14 13.73 1.5867 -4 0 6 2
58.49 7.33 1.5781 -3 3 1 4
58.69 5.76 1.5730 1 1 5 4
60.18 2.93 1.5377 5 1 0 4
60.26 5.95 1.5359 4 1 2 4
60.44 4.40 1.5316 -3 3 3 4
61.46 1.60 1.5086 -4 2 5 4
62.10 1.00 1.4947 -5 2 2 4
63.86 1.08 1.4576 -5 2 1 4
63.95 4.08 1.4558 -6 0 4 2
64.03 1.61 1.4542 3 0 4 2
64.04 8.36 1.4541 -5 2 4 4
64.10 3.53 1.4528 2 2 4 4
64.33 3.72 1.4482 -2 2 6 4
64.90 7.27 1.4367 -3 2 6 4
65.99 1.18 1.4156 4 0 3 2
66.43 20.34 1.4073 0 4 0 2
66.81 3.26 1.4003 2 1 5 4
67.08 1.27 1.3953 -2 1 7 4
67.37 2.46 1.3899 5 2 0 4
67.44 12.75 1.3887 4 2 2 4
67.80 1.22 1.3822 -4 2 6 4
68.76 1.13 1.3653 -6 1 1 4
68.83 1.78 1.3639 1 3 4 4
68.93 1.15 1.3622 -1 3 5 4
70.14 2.64 1.3418 0 2 6 4
70.23 1.77 1.3402 5 0 2 2
72.28 1.49 1.3071 -6 2 3 4
72.89 1.04 1.2978 -5 2 6 4
73.07 4.05 1.2950 -6 2 2 4
73.13 1.60 1.2940 -4 3 5 4
73.20 2.45 1.2930 -6 2 4 4
73.55 1.02 1.2877 2 4 1 4
73.72 1.07 1.2852 -5 3 2 4
74.43 1.39 1.2746 3 0 5 2
74.45 1.65 1.2743 0 1 7 4
74.85 1.87 1.2685 -3 0 8 2
74.95 1.56 1.2670 -3 4 2 4
75.12 3.48 1.2646 4 2 3 4
75.35 4.81 1.2614 -5 3 1 4
75.42 1.27 1.2603 4 0 4 2
75.53 1.37 1.2588 -6 2 1 4
75.67 1.02 1.2568 2 0 6 2
75.79 4.62 1.2551 -6 2 5 4
75.97 1.08 1.2526 -2 0 8 2
76.57 2.34 1.2443 3 4 0 4
77.32 2.51 1.2341 1 3 5 4
77.72 2.79 1.2287 2 4 2 4
78.63 1.34 1.2168 5 3 0 4
78.69 2.07 1.2159 4 3 2 4
79.29 2.86 1.2082 -6 1 7 4
81.05 1.95 1.1864 0 2 7 4
81.73 1.39 1.1783 -4 4 1 4
84.14 1.11 1.1505 4 4 0 4
84.57 1.04 1.1458 -6 0 8 2
84.62 1.54 1.1453 2 3 5 4
86.82 1.09 1.1218 0 1 8 4
87.10 2.04 1.1190 7 1 0 4
87.60 2.00 1.1138 -7 1 7 4
87.86 1.58 1.1112 -5 2 8 4
87.92 1.35 1.1106 -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.