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 = 1.04, Synthesis at P=200 MPa, T=500 C
_database_code_amcsd 0003591
CELL PARAMETERS: 8.8596 5.6834 10.1679 90.000 115.503 90.000
SPACE GROUP: P2_1/m
X-RAY WAVELENGTH: 1.541838
Cell Volume: 462.095
Density (g/cm3): 3.467
MAX. ABS. INTENSITY / VOLUME**2: 9.405239869
RIR: 0.883
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
9.64 3.40 9.1772 0 0 1 2
11.06 2.55 7.9963 1 0 0 2
11.11 5.01 7.9610 -1 0 1 2
17.57 1.15 5.0477 1 0 1 2
17.66 27.46 5.0211 -1 0 2 2
19.16 1.58 4.6325 1 1 0 4
19.19 4.43 4.6256 -1 1 1 4
22.23 14.63 3.9982 2 0 0 2
22.33 20.37 3.9805 -2 0 2 2
23.57 4.78 3.7741 1 1 1 4
23.64 2.59 3.7629 -1 1 2 4
25.49 32.01 3.4938 -2 1 1 4
26.23 11.95 3.3981 1 0 2 2
27.92 8.85 3.1960 2 0 1 2
29.19 3.78 3.0591 0 0 3 2
30.64 2.45 2.9182 -3 0 1 2
30.65 2.34 2.9165 1 1 2 4
30.69 12.36 2.9131 -3 0 2 2
30.75 100.00 2.9079 -1 1 3 4
31.48 37.70 2.8417 0 2 0 2
32.13 6.94 2.7858 2 1 1 4
32.27 2.59 2.7738 -2 1 3 4
33.26 29.74 2.6937 0 1 3 4
33.47 22.32 2.6776 1 2 0 4
33.62 16.78 2.6654 3 0 0 2
34.55 41.90 2.5960 -3 1 1 4
34.60 1.36 2.5924 -3 1 2 4
35.57 17.22 2.5239 2 0 2 2
35.77 2.09 2.5104 -1 0 4 2
36.33 8.54 2.4731 -1 2 2 4
37.22 24.65 2.4159 0 2 2 4
37.40 31.05 2.4045 -3 1 3 4
37.61 3.23 2.3918 -2 2 1 4
38.94 10.84 2.3128 -2 2 2 4
39.05 2.24 2.3066 2 1 2 4
39.13 6.32 2.3023 1 1 3 4
39.23 5.60 2.2965 -2 1 4 4
39.23 1.53 2.2963 -1 1 4 4
39.26 2.31 2.2947 -3 0 4 2
41.49 5.87 2.1763 -1 2 3 4
41.91 16.34 2.1558 -4 0 1 2
42.02 2.43 2.1503 -4 0 3 2
42.49 1.22 2.1275 0 1 4 4
42.57 15.94 2.1237 2 2 1 4
42.68 18.05 2.1183 -2 2 3 4
43.47 14.35 2.0820 0 2 3 4
44.36 7.24 2.0420 2 0 3 2
44.50 2.56 2.0359 -3 2 1 4
45.37 5.83 1.9991 4 0 0 2
47.30 4.28 1.9217 2 1 3 4
48.23 8.84 1.8870 2 2 2 4
48.38 10.30 1.8815 -2 2 4 4
48.38 6.52 1.8814 -1 2 4 4
48.47 3.82 1.8781 1 1 4 4
48.58 3.63 1.8739 -1 1 5 4
49.02 2.38 1.8582 3 1 2 4
49.44 1.52 1.8434 1 3 0 4
50.98 1.44 1.7912 3 2 1 4
51.17 2.34 1.7851 0 2 4 4
51.81 5.14 1.7646 -5 0 2 2
52.37 1.93 1.7469 -4 2 2 4
52.38 2.09 1.7466 0 1 5 4
52.54 3.77 1.7419 -2 3 1 4
53.71 4.30 1.7066 -4 1 5 4
54.20 3.18 1.6923 -2 0 6 2
54.44 1.50 1.6853 -5 1 2 4
54.50 1.92 1.6836 -5 1 3 4
54.85 3.17 1.6737 -3 0 6 2
55.59 10.15 1.6531 -1 3 3 4
56.02 1.14 1.6414 1 0 5 2
56.15 10.78 1.6381 -1 0 6 2
56.26 2.63 1.6350 4 2 0 4
56.35 10.08 1.6327 -5 1 1 4
56.45 17.22 1.6302 -4 2 4 4
56.45 6.08 1.6300 1 2 4 4
56.47 1.11 1.6297 2 3 1 4
56.52 1.28 1.6282 -5 1 4 4
56.53 2.40 1.6279 2 1 4 4
56.76 1.03 1.6219 -2 1 6 4
56.95 5.41 1.6169 3 2 2 4
57.19 4.35 1.6106 0 3 3 4
58.05 11.77 1.5890 -4 0 6 2
58.05 9.58 1.5890 -3 3 1 4
58.53 4.93 1.5770 1 1 5 4
60.00 4.61 1.5419 -3 3 3 4
60.10 2.14 1.5395 5 1 0 4
60.15 6.34 1.5384 4 1 2 4
60.53 1.23 1.5295 0 0 6 2
61.22 1.84 1.5141 -4 2 5 4
63.54 1.00 1.4643 -5 0 6 2
63.82 9.32 1.4585 -5 2 4 4
63.83 3.88 1.4583 2 2 4 4
63.91 3.85 1.4565 -6 0 4 2
63.93 1.87 1.4563 3 0 4 2
64.04 4.04 1.4540 -2 2 6 4
64.63 7.07 1.4421 -3 2 6 4
65.50 1.04 1.4250 5 1 1 4
65.72 20.61 1.4209 0 4 0 2
65.91 1.05 1.4172 4 0 3 2
66.59 1.15 1.4043 -3 1 7 4
66.64 3.92 1.4034 2 1 5 4
67.17 3.00 1.3937 5 2 0 4
67.21 13.59 1.3929 4 2 2 4
67.43 1.01 1.3888 2 3 3 4
68.37 1.35 1.3721 1 3 4 4
68.61 1.27 1.3679 -4 1 7 4
69.83 3.25 1.3468 0 2 6 4
70.16 1.59 1.3413 5 0 2 2
72.08 1.10 1.3103 -6 2 3 4
72.64 1.09 1.3016 -5 2 6 4
72.69 1.53 1.3008 -4 3 5 4
72.87 4.14 1.2980 -6 2 2 4
72.99 3.77 1.2962 -6 2 4 4
74.24 1.68 1.2775 0 1 7 4
74.27 1.40 1.2770 -3 4 2 4
74.30 1.43 1.2766 3 0 5 2
74.68 2.57 1.2710 -3 0 8 2
74.87 3.25 1.2682 4 2 3 4
74.95 4.95 1.2671 -5 3 1 4
75.31 1.39 1.2619 4 0 4 2
75.34 1.46 1.2616 -6 2 1 4
75.57 2.62 1.2582 -6 2 5 4
75.88 2.40 1.2538 3 4 0 4
75.97 1.03 1.2526 1 2 6 4
76.84 2.21 1.2406 1 3 5 4
77.02 3.55 1.2381 2 4 2 4
78.22 1.03 1.2220 5 3 0 4
78.27 2.11 1.2215 4 3 2 4
79.15 2.63 1.2101 -6 1 7 4
79.77 1.10 1.2022 -6 2 6 4
80.72 1.25 1.1904 0 2 7 4
81.06 1.82 1.1864 -4 4 1 4
83.47 1.11 1.1581 4 4 0 4
84.14 1.95 1.1506 2 3 5 4
84.43 1.28 1.1473 -6 0 8 2
86.56 1.20 1.1245 0 1 8 4
87.00 1.45 1.1199 7 1 0 4
87.47 2.01 1.1152 -7 1 7 4
87.55 1.54 1.1143 -5 2 8 4
87.56 1.54 1.1142 -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.