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 = 0.75, p = 0.75, Synthesis at P=350 MPa, T=500 C _database_code_amcsd 0003588 CELL PARAMETERS: 8.8548 5.6541 10.1546 90.000 115.514 90.000 SPACE GROUP: P2_1/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 458.820 Density (g/cm3): 3.431 MAX. ABS. INTENSITY / VOLUME**2: 9.405271975 RIR: 0.893 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 9.65 2.25 9.1643 0 0 1 2 11.07 4.07 7.9913 1 0 0 2 11.12 2.44 7.9548 -1 0 1 2 17.69 25.06 5.0150 -1 0 2 2 19.26 3.49 4.6086 -1 1 1 4 22.25 13.85 3.9956 2 0 0 2 22.35 18.71 3.9774 -2 0 2 2 23.64 5.37 3.7633 1 1 1 4 23.71 1.51 3.7518 -1 1 2 4 25.55 26.86 3.4858 -2 1 1 4 26.26 11.40 3.3940 1 0 2 2 27.94 9.19 3.1933 2 0 1 2 29.24 3.68 3.0548 0 0 3 2 30.65 1.76 2.9167 -3 0 1 2 30.71 13.15 2.9113 -3 0 2 2 30.82 100.00 2.9011 -1 1 3 4 31.65 35.17 2.8270 0 2 0 2 32.19 8.74 2.7805 2 1 1 4 32.34 1.58 2.7682 -2 1 3 4 33.34 27.69 2.6876 0 1 3 4 33.63 21.54 2.6652 1 2 0 4 33.65 15.37 2.6638 3 0 0 2 34.60 37.75 2.5921 -3 1 1 4 34.66 1.07 2.5884 -3 1 2 4 35.61 14.32 2.5212 2 0 2 2 35.82 3.15 2.5069 -1 0 4 2 36.48 10.12 2.4627 -1 2 2 4 37.38 24.08 2.4060 0 2 2 4 37.46 27.96 2.4007 -3 1 3 4 37.76 4.26 2.3827 -2 2 1 4 39.09 10.85 2.3043 -2 2 2 4 39.12 1.99 2.3027 2 1 2 4 39.21 4.90 2.2978 1 1 3 4 39.30 1.34 2.2924 -3 0 4 2 39.31 3.58 2.2922 -2 1 4 4 39.31 1.71 2.2918 -1 1 4 4 41.65 5.02 2.1685 -1 2 3 4 41.93 13.93 2.1546 -4 0 1 2 42.05 2.55 2.1489 -4 0 3 2 42.58 1.49 2.1234 0 1 4 4 42.72 16.25 2.1167 2 2 1 4 42.83 15.87 2.1113 -2 2 3 4 43.62 13.45 2.0749 0 2 3 4 44.42 6.58 2.0396 2 0 3 2 44.64 2.83 2.0300 -3 2 1 4 45.40 5.44 1.9978 4 0 0 2 45.78 1.37 1.9822 -1 0 5 2 46.50 1.21 1.9531 -3 0 5 2 47.38 2.85 1.9186 2 1 3 4 48.37 8.27 1.8816 2 2 2 4 48.53 12.29 1.8759 -2 2 4 4 48.54 5.33 1.8757 -1 2 4 4 48.56 3.82 1.8748 1 1 4 4 48.68 3.58 1.8706 -1 1 5 4 49.10 2.59 1.8556 3 1 2 4 49.70 1.12 1.8344 1 3 0 4 51.12 1.12 1.7867 3 2 1 4 51.33 2.19 1.7800 0 2 4 4 51.78 1.01 1.7654 1 3 1 4 51.84 4.38 1.7637 -5 0 2 2 52.48 2.26 1.7435 0 1 5 4 52.50 1.75 1.7429 -4 2 2 4 52.79 3.23 1.7341 -2 3 1 4 53.78 5.32 1.7044 -4 1 5 4 54.28 3.11 1.6900 -2 0 6 2 54.50 2.22 1.6837 -5 1 2 4 54.56 1.84 1.6820 -5 1 3 4 54.92 2.53 1.6717 -3 0 6 2 55.85 10.25 1.6461 -1 3 3 4 56.24 10.08 1.6358 -1 0 6 2 56.39 2.78 1.6315 4 2 0 4 56.41 10.58 1.6311 -5 1 1 4 56.58 14.31 1.6266 -4 2 4 4 56.61 6.56 1.6258 1 2 4 4 56.63 2.11 1.6254 2 1 4 4 56.72 1.37 1.6231 2 3 1 4 57.09 4.48 1.6132 3 2 2 4 57.45 4.12 1.6040 0 3 3 4 58.11 11.89 1.5873 -4 0 6 2 58.29 8.20 1.5830 -3 3 1 4 58.64 4.96 1.5744 1 1 5 4 60.17 2.37 1.5380 5 1 0 4 60.23 5.29 1.5365 4 1 2 4 60.24 4.17 1.5362 -3 3 3 4 60.63 1.06 1.5274 0 0 6 2 61.36 1.73 1.5109 -4 2 5 4 63.95 8.61 1.4558 -5 2 4 4 63.96 4.04 1.4557 -6 0 4 2 63.99 3.37 1.4550 2 2 4 4 64.01 1.61 1.4546 3 0 4 2 64.21 4.24 1.4506 -2 2 6 4 64.79 5.85 1.4389 -3 2 6 4 65.98 1.13 1.4158 4 0 3 2 66.10 19.76 1.4135 0 4 0 2 66.71 1.01 1.4022 -3 1 7 4 66.75 3.29 1.4014 2 1 5 4 67.30 2.69 1.3913 5 2 0 4 67.36 13.81 1.3902 4 2 2 4 67.70 1.00 1.3841 -4 2 6 4 68.63 1.53 1.3675 1 3 4 4 70.02 2.90 1.3438 0 2 6 4 70.23 1.78 1.3402 5 0 2 2 72.21 1.05 1.3082 -6 2 3 4 72.79 1.15 1.2993 -5 2 6 4 72.94 1.71 1.2970 -4 3 5 4 73.00 3.69 1.2961 -6 2 2 4 73.12 3.09 1.2942 -6 2 4 4 73.55 1.15 1.2878 -5 3 2 4 74.38 1.76 1.2754 0 1 7 4 74.40 1.35 1.2751 3 0 5 2 74.64 1.47 1.2716 -3 4 2 4 74.80 2.27 1.2693 -3 0 8 2 75.03 3.20 1.2659 4 2 3 4 75.18 4.94 1.2638 -5 3 1 4 75.40 1.29 1.2606 4 0 4 2 75.47 1.39 1.2597 -6 2 1 4 75.63 1.06 1.2574 2 0 6 2 75.71 3.74 1.2563 -6 2 5 4 75.91 1.13 1.2535 -2 0 8 2 76.26 2.19 1.2486 3 4 0 4 77.11 2.25 1.2369 1 3 5 4 77.40 3.09 1.2330 2 4 2 4 78.46 1.05 1.2190 5 3 0 4 78.52 1.80 1.2182 4 3 2 4 79.25 2.32 1.2088 -6 1 7 4 79.92 1.09 1.2004 -6 2 6 4 80.92 1.74 1.1880 0 2 7 4 81.43 1.50 1.1819 -4 4 1 4 83.84 1.02 1.1539 4 4 0 4 84.42 1.60 1.1475 2 3 5 4 84.53 1.42 1.1462 -6 0 8 2 86.73 1.08 1.1227 0 1 8 4 87.09 1.72 1.1190 7 1 0 4 87.57 1.99 1.1141 -7 1 7 4 87.74 1.66 1.1124 -5 2 8 4 87.78 1.50 1.1120 -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.