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 = 1.75, p = 1.25, Synthesis at P=350 MPa, T=500 C
_database_code_amcsd 0003596
CELL PARAMETERS: 8.8581 5.6949 10.1771 90.000 115.518 90.000
SPACE GROUP: P2_1/m
X-RAY WAVELENGTH: 1.541838
Cell Volume: 463.312
Density (g/cm3): 3.500
MAX. ABS. INTENSITY / VOLUME**2: 9.559914592
RIR: 0.889
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
9.63 5.48 9.1843 0 0 1 2
11.07 3.38 7.9940 1 0 0 2
11.11 6.40 7.9635 -1 0 1 2
17.57 1.50 5.0483 1 0 1 2
17.65 28.89 5.0253 -1 0 2 2
19.13 2.93 4.6383 1 1 0 4
19.16 5.51 4.6323 -1 1 1 4
22.24 12.81 3.9970 2 0 0 2
22.33 22.75 3.9818 -2 0 2 2
23.55 4.12 3.7777 1 1 1 4
23.61 3.79 3.7680 -1 1 2 4
25.48 35.38 3.4961 -2 1 1 4
26.22 12.43 3.3993 1 0 2 2
27.26 1.06 3.2716 2 1 0 4
27.92 7.95 3.1957 2 0 1 2
29.17 4.15 3.0614 0 0 3 2
30.63 4.12 2.9189 1 1 2 4
30.64 2.61 2.9175 -3 0 1 2
30.69 12.35 2.9130 -3 0 2 2
30.71 100.00 2.9114 -1 1 3 4
31.42 37.38 2.8475 0 2 0 2
32.12 6.66 2.7869 2 1 1 4
32.24 2.50 2.7766 -2 1 3 4
33.22 29.38 2.6965 0 1 3 4
33.41 24.07 2.6824 1 2 0 4
33.63 16.20 2.6647 3 0 0 2
34.54 40.31 2.5966 -3 1 1 4
34.59 2.60 2.5934 -3 1 2 4
35.57 18.00 2.5241 2 0 2 2
35.73 2.04 2.5127 -1 0 4 2
36.22 1.38 2.4801 1 2 1 4
36.26 8.25 2.4774 -1 2 2 4
37.15 26.19 2.4200 0 2 2 4
37.38 29.45 2.4060 -3 1 3 4
37.55 3.45 2.3952 -2 2 1 4
38.83 1.17 2.3191 2 2 0 4
38.88 11.01 2.3161 -2 2 2 4
39.03 2.25 2.3076 2 1 2 4
39.04 1.30 2.3070 3 0 1 2
39.10 5.99 2.3040 1 1 3 4
39.19 1.29 2.2989 -1 1 4 4
39.19 6.20 2.2988 -2 1 4 4
39.24 3.04 2.2960 -3 0 4 2
41.42 6.46 2.1797 -1 2 3 4
41.92 20.08 2.1552 -4 0 1 2
42.02 1.71 2.1504 -4 0 3 2
42.45 1.44 2.1295 0 1 4 4
42.52 17.54 2.1260 2 2 1 4
42.62 17.77 2.1214 -2 2 3 4
43.40 15.54 2.0850 0 2 3 4
44.35 6.25 2.0425 2 0 3 2
44.46 1.94 2.0378 -3 2 1 4
45.38 4.65 1.9985 4 0 0 2
47.28 5.24 1.9226 2 1 3 4
48.18 9.47 1.8888 2 2 2 4
48.31 6.95 1.8840 -1 2 4 4
48.31 9.58 1.8840 -2 2 4 4
48.43 3.72 1.8794 1 1 4 4
48.53 4.42 1.8759 -1 1 5 4
49.01 1.81 1.8586 3 1 2 4
49.34 1.65 1.8469 1 3 0 4
50.95 1.22 1.7925 3 2 1 4
51.10 1.81 1.7874 0 2 4 4
51.82 4.80 1.7642 -5 0 2 2
52.33 2.31 1.7482 0 1 5 4
52.34 2.03 1.7481 -4 2 2 4
52.44 4.21 1.7448 -2 3 1 4
53.67 4.49 1.7078 -4 1 5 4
54.15 2.90 1.6938 -2 0 6 2
54.45 1.21 1.6852 -5 1 2 4
54.50 1.84 1.6838 -5 1 3 4
54.80 3.37 1.6751 -3 0 6 2
55.49 10.39 1.6560 -1 3 3 4
55.99 1.20 1.6424 1 0 5 2
56.10 10.57 1.6395 -1 0 6 2
56.23 2.99 1.6358 4 2 0 4
56.36 9.24 1.6325 -5 1 1 4
56.39 6.01 1.6317 1 2 4 4
56.39 18.11 1.6316 -4 2 4 4
56.50 2.43 1.6287 2 1 4 4
56.51 1.75 1.6286 -5 1 4 4
56.91 5.72 1.6180 3 2 2 4
57.09 4.43 1.6133 0 3 3 4
57.96 9.46 1.5911 -3 3 1 4
57.99 1.06 1.5904 -3 3 2 4
58.00 11.11 1.5901 -4 0 6 2
58.49 4.46 1.5781 1 1 5 4
59.90 4.52 1.5441 -3 3 3 4
60.11 2.63 1.5393 5 1 0 4
60.15 6.57 1.5384 4 1 2 4
60.48 1.17 1.5307 0 0 6 2
61.15 2.10 1.5155 -4 2 5 4
62.96 1.17 1.4763 -6 0 3 2
63.50 1.21 1.4650 -5 0 6 2
63.64 1.49 1.4622 -5 2 1 4
63.77 4.24 1.4594 2 2 4 4
63.77 9.96 1.4594 -5 2 4 4
63.91 2.45 1.4566 3 0 4 2
63.92 3.32 1.4565 -6 0 4 2
63.95 3.81 1.4557 -2 2 6 4
64.55 7.74 1.4438 -3 2 6 4
65.51 1.32 1.4248 5 1 1 4
65.57 20.94 1.4237 0 4 0 2
65.91 1.18 1.4172 4 0 3 2
66.23 1.15 1.4111 -6 1 4 4
66.52 1.29 1.4056 -3 1 7 4
66.60 4.08 1.4042 2 1 5 4
67.15 3.11 1.3941 5 2 0 4
67.18 13.80 1.3934 4 2 2 4
67.34 1.22 1.3905 2 3 3 4
68.27 1.32 1.3739 1 3 4 4
68.35 1.13 1.3725 -1 3 5 4
68.54 1.32 1.3691 -4 1 7 4
69.75 3.70 1.3483 0 2 6 4
70.18 1.65 1.3411 5 0 2 2
70.21 1.09 1.3406 -2 4 2 4
72.06 1.05 1.3106 -6 2 3 4
72.59 1.51 1.3024 -4 3 5 4
72.85 3.70 1.2983 -6 2 2 4
72.96 3.65 1.2967 -6 2 4 4
74.13 1.36 1.2791 -3 4 2 4
74.16 2.08 1.2786 0 1 7 4
74.27 1.48 1.2770 3 0 5 2
74.60 2.58 1.2721 -3 0 8 2
74.84 3.31 1.2687 4 2 3 4
74.88 4.62 1.2681 -5 3 1 4
75.30 1.43 1.2621 4 0 4 2
75.32 1.26 1.2618 -6 2 1 4
75.52 2.39 1.2589 -6 2 5 4
75.75 2.34 1.2557 3 4 0 4
76.73 2.02 1.2421 1 3 5 4
76.88 3.67 1.2401 2 4 2 4
78.16 1.18 1.2229 5 3 0 4
78.19 2.26 1.2224 4 3 2 4
79.10 2.64 1.2107 -6 1 7 4
79.16 1.18 1.2100 -3 4 4 4
79.71 1.16 1.2030 -6 2 6 4
80.93 2.32 1.1879 -4 4 1 4
82.50 1.00 1.1692 -7 1 6 4
84.03 1.96 1.1518 2 3 5 4
84.37 1.32 1.1480 -6 0 8 2
86.47 1.12 1.1254 0 1 8 4
87.02 1.34 1.1197 7 1 0 4
87.42 1.83 1.1156 -7 1 7 4
87.45 1.78 1.1154 -1 2 8 4
87.45 1.72 1.1153 -5 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.