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 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.