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 = 1.5, p = 1.25, Synthesis at P=350 MPa, T=500 C
_database_code_amcsd 0003594
CELL PARAMETERS: 8.8625 5.7006 10.1822 90.000 115.525 90.000
SPACE GROUP: P2_1/m
X-RAY WAVELENGTH: 1.541838
Cell Volume: 464.212
Density (g/cm3): 3.495
MAX. ABS. INTENSITY / VOLUME**2: 9.480197520
RIR: 0.883
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
9.63 7.27 9.1884 0 0 1 2
11.06 3.37 7.9975 1 0 0 2
11.10 6.24 7.9678 -1 0 1 2
17.64 28.15 5.0279 -1 0 2 2
19.12 1.35 4.6420 1 1 0 4
19.14 4.78 4.6362 -1 1 1 4
22.23 12.40 3.9987 2 0 0 2
22.32 19.67 3.9839 -2 0 2 2
23.53 4.46 3.7802 1 1 1 4
23.59 2.45 3.7708 -1 1 2 4
25.46 32.17 3.4986 -2 1 1 4
26.20 14.15 3.4007 1 0 2 2
27.24 1.28 3.2737 2 1 0 4
27.91 7.81 3.1970 2 0 1 2
29.16 5.01 3.0628 0 0 3 2
30.61 3.97 2.9205 1 1 2 4
30.63 4.04 2.9189 -3 0 1 2
30.68 11.92 2.9145 -3 0 2 2
30.69 100.00 2.9133 -1 1 3 4
31.38 36.50 2.8503 0 2 0 2
32.10 6.83 2.7884 2 1 1 4
32.22 2.46 2.7784 -2 1 3 4
33.21 30.44 2.6980 0 1 3 4
33.37 25.34 2.6849 1 2 0 4
33.62 17.36 2.6658 3 0 0 2
34.52 40.60 2.5981 -3 1 1 4
34.56 1.14 2.5950 -3 1 2 4
35.55 17.82 2.5251 2 0 2 2
35.72 2.02 2.5139 -1 0 4 2
36.19 1.57 2.4823 1 2 1 4
36.23 9.81 2.4796 -1 2 2 4
37.12 26.96 2.4220 0 2 2 4
37.35 30.70 2.4075 -3 1 3 4
37.52 2.90 2.3972 -2 2 1 4
38.80 1.29 2.3210 2 2 0 4
38.85 13.98 2.3181 -2 2 2 4
39.01 2.68 2.3088 2 1 2 4
39.08 6.12 2.3052 1 1 3 4
39.16 6.16 2.3002 -2 1 4 4
39.22 2.67 2.2972 -3 0 4 2
41.39 6.85 2.1814 -1 2 3 4
41.90 19.38 2.1562 -4 0 1 2
41.99 1.74 2.1515 -4 0 3 2
42.43 1.12 2.1306 0 1 4 4
42.49 17.14 2.1275 2 2 1 4
42.58 16.55 2.1230 -2 2 3 4
43.37 15.14 2.0865 0 2 3 4
44.33 7.46 2.0433 2 0 3 2
44.42 2.68 2.0393 -3 2 1 4
45.36 4.91 1.9994 4 0 0 2
47.26 4.88 1.9235 2 1 3 4
48.14 7.53 1.8901 2 2 2 4
48.27 9.09 1.8854 -2 2 4 4
48.27 7.71 1.8854 -1 2 4 4
48.41 4.39 1.8803 1 1 4 4
48.50 4.48 1.8769 -1 1 5 4
48.99 1.55 1.8594 3 1 2 4
49.29 1.76 1.8487 1 3 0 4
49.61 1.02 1.8377 0 0 5 2
50.91 1.15 1.7937 3 2 1 4
51.07 2.41 1.7886 0 2 4 4
51.79 5.24 1.7651 -5 0 2 2
52.30 2.02 1.7493 -4 2 2 4
52.31 2.27 1.7490 0 1 5 4
52.39 4.03 1.7464 -2 3 1 4
53.64 4.20 1.7087 -4 1 5 4
54.12 2.40 1.6946 -2 0 6 2
54.46 1.76 1.6847 -5 1 3 4
54.77 2.50 1.6760 -3 0 6 2
55.44 9.67 1.6575 -1 3 3 4
56.07 11.42 1.6403 -1 0 6 2
56.20 3.43 1.6368 4 2 0 4
56.32 1.06 1.6335 2 3 1 4
56.33 9.02 1.6333 -5 1 1 4
56.35 19.02 1.6327 -4 2 4 4
56.35 6.08 1.6327 1 2 4 4
56.47 2.15 1.6295 -5 1 4 4
56.47 2.36 1.6294 2 1 4 4
56.67 1.23 1.6244 -2 1 6 4
56.87 6.35 1.6189 3 2 2 4
57.04 4.39 1.6147 0 3 3 4
57.91 9.98 1.5925 -3 3 1 4
57.97 11.99 1.5909 -4 0 6 2
58.46 3.80 1.5788 1 1 5 4
59.85 4.46 1.5454 -3 3 3 4
60.08 1.71 1.5400 5 1 0 4
60.12 7.45 1.5391 4 1 2 4
60.45 1.45 1.5314 0 0 6 2
61.11 1.30 1.5165 -4 2 5 4
63.46 1.25 1.4658 -5 0 6 2
63.59 1.79 1.4631 -5 2 1 4
63.73 9.64 1.4603 -5 2 4 4
63.73 4.08 1.4603 2 2 4 4
63.88 3.94 1.4573 -6 0 4 2
63.88 2.59 1.4572 3 0 4 2
63.91 3.64 1.4566 -2 2 6 4
64.50 7.06 1.4447 -3 2 6 4
65.48 1.26 1.4255 5 1 1 4
65.50 20.89 1.4252 0 4 0 2
66.19 1.41 1.4119 -6 1 4 4
66.48 1.16 1.4064 -3 1 7 4
66.56 3.93 1.4048 2 1 5 4
67.10 3.46 1.3949 5 2 0 4
67.14 12.76 1.3942 4 2 2 4
67.29 1.08 1.3915 2 3 3 4
67.41 1.08 1.3892 -4 2 6 4
68.21 1.50 1.3749 1 3 4 4
68.29 1.10 1.3735 -1 3 5 4
68.50 1.20 1.3698 -4 1 7 4
69.71 3.70 1.3490 0 2 6 4
70.14 1.60 1.3417 5 0 2 2
72.52 1.56 1.3034 -4 3 5 4
72.80 4.20 1.2990 -6 2 2 4
72.90 3.95 1.2975 -6 2 4 4
74.05 1.39 1.2803 -3 4 2 4
74.12 1.84 1.2792 0 1 7 4
74.24 1.55 1.2775 3 0 5 2
74.56 2.68 1.2728 -3 0 8 2
74.79 3.21 1.2694 4 2 3 4
74.82 4.76 1.2690 -5 3 1 4
75.26 1.42 1.2626 4 0 4 2
75.27 1.55 1.2625 -6 2 1 4
75.47 1.98 1.2597 -6 2 5 4
75.66 1.03 1.2569 -2 0 8 2
75.67 2.49 1.2568 3 4 0 4
76.67 1.76 1.2429 1 3 5 4
76.80 3.68 1.2411 2 4 2 4
78.13 2.55 1.2232 4 3 2 4
79.05 2.97 1.2114 -6 1 7 4
79.07 1.13 1.2110 -3 4 4 4
79.65 1.33 1.2037 -6 2 6 4
80.84 2.18 1.1889 -4 4 1 4
83.97 1.92 1.1525 2 3 5 4
84.32 1.25 1.1486 -6 0 8 2
86.42 1.14 1.1259 0 1 8 4
86.97 1.19 1.1202 7 1 0 4
87.36 2.13 1.1162 -7 1 7 4
87.38 1.66 1.1160 -5 2 8 4
87.39 1.74 1.1160 -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.