Cummingtonite Yang H, Hazen R M, Prewitt C T, Finger L W, Lu R, Hemley R J American Mineralogist 83 (1998) 288-299 High-pressure single-crystal X-ray diffraction and infrared spectroscopic studies of the C2/m-P2_1/m phase transition in cummingtonite Sample: P = 0.60 GPa _database_code_amcsd 0001971 CELL PARAMETERS: 9.4890 18.1508 5.3102 90.000 102.210 90.000 SPACE GROUP: C2/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 893.902 Density (g/cm3): 3.304 MAX. ABS. INTENSITY / VOLUME**2: 8.150266049 RIR: 0.803 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 9.75 48.49 9.0754 0 2 0 2 10.71 100.00 8.2587 1 1 0 4 17.08 12.49 5.1901 0 0 1 2 17.50 5.91 5.0673 1 3 0 4 18.40 17.47 4.8226 -1 1 1 4 19.14 3.77 4.6372 2 0 0 2 19.56 11.33 4.5377 0 4 0 2 19.70 3.59 4.5054 0 2 1 4 21.52 16.11 4.1294 2 2 0 4 21.87 5.13 4.0631 1 1 1 4 22.86 4.77 3.8909 -2 0 1 2 23.07 32.93 3.8553 -1 3 1 4 25.96 39.83 3.4329 1 3 1 4 26.08 3.61 3.4161 0 4 1 4 26.37 1.15 3.3804 1 5 0 4 27.50 47.93 3.2432 2 4 0 4 28.39 4.64 3.1434 2 0 1 2 29.31 71.82 3.0476 3 1 0 4 29.53 3.30 3.0251 0 6 0 2 30.09 38.15 2.9703 2 2 1 4 30.26 2.30 2.9537 -2 4 1 4 30.42 4.20 2.9381 -1 5 1 4 30.77 1.12 2.9058 -3 1 1 4 32.53 10.83 2.7529 3 3 0 4 32.71 90.71 2.7377 1 5 1 4 33.86 8.19 2.6471 -3 3 1 4 34.21 5.40 2.6209 -1 1 2 4 34.31 51.99 2.6136 0 6 1 4 34.56 1.37 2.5950 0 0 2 2 35.43 5.20 2.5337 2 6 0 4 35.90 61.29 2.5012 -2 0 2 2 36.00 2.05 2.4950 0 2 2 4 37.29 1.62 2.4113 -2 2 2 4 37.66 3.84 2.3882 -2 6 1 4 38.24 3.56 2.3536 3 5 0 4 39.13 7.01 2.3021 -1 7 1 4 39.41 24.28 2.2865 -3 5 1 4 39.73 2.40 2.2689 0 8 0 2 40.35 12.03 2.2353 -4 2 1 4 40.70 15.84 2.2171 -3 1 2 4 40.99 11.03 2.2018 1 7 1 4 41.21 3.48 2.1905 -2 4 2 4 41.43 44.94 2.1797 2 6 1 4 43.17 2.50 2.0955 -3 3 2 4 43.41 22.68 2.0845 2 0 2 2 43.53 2.67 2.0789 0 8 1 4 43.85 1.84 2.0647 4 4 0 4 44.45 3.75 2.0380 2 8 0 4 44.60 1.24 2.0316 2 2 2 4 44.77 12.61 2.0244 3 5 1 4 45.67 2.00 1.9867 3 7 0 4 45.69 1.28 1.9858 1 5 2 4 46.06 2.53 1.9707 1 9 0 4 46.08 1.60 1.9696 0 6 2 4 46.13 1.58 1.9676 4 0 1 2 46.32 1.41 1.9600 -2 8 1 4 46.68 5.25 1.9458 -3 7 1 4 46.69 10.77 1.9455 -4 0 2 2 47.81 2.18 1.9025 -3 5 2 4 47.82 2.03 1.9023 -4 2 2 4 48.68 7.24 1.8705 -1 9 1 4 49.39 2.07 1.8453 5 1 0 4 49.53 1.85 1.8402 4 6 0 4 49.55 1.81 1.8397 2 8 1 4 49.71 2.76 1.8341 -4 6 1 4 50.26 1.54 1.8155 1 9 1 4 51.08 9.41 1.7881 -4 4 2 4 51.53 1.71 1.7734 5 3 0 4 53.43 2.37 1.7149 -2 2 3 4 53.66 5.18 1.7081 0 8 2 4 53.95 2.73 1.6994 0 2 3 4 53.99 5.89 1.6983 -1 3 3 4 54.20 1.04 1.6924 -3 7 2 4 54.61 2.66 1.6805 -2 8 2 4 54.63 9.06 1.6800 -5 1 2 4 55.08 4.32 1.6673 -5 5 1 4 55.73 31.97 1.6494 4 6 1 4 56.66 12.16 1.6246 1 11 0 4 56.77 1.84 1.6216 4 8 0 4 57.98 21.21 1.5906 -1 5 3 4 58.74 4.47 1.5719 2 10 1 4 58.75 5.95 1.5717 4 0 2 2 59.71 1.15 1.5487 4 2 2 4 59.83 6.54 1.5457 6 0 0 2 60.23 2.12 1.5365 1 9 2 4 61.28 14.77 1.5126 0 12 0 2 61.29 16.06 1.5124 -2 6 3 4 61.77 6.44 1.5018 0 6 3 4 62.10 2.96 1.4947 5 5 1 4 62.48 1.29 1.4865 4 8 1 4 62.54 4.93 1.4851 4 4 2 4 62.93 2.01 1.4769 -4 8 2 4 63.17 6.26 1.4719 -6 0 2 2 63.67 5.22 1.4616 -1 7 3 4 63.96 4.37 1.4557 3 11 0 4 65.43 3.05 1.4264 -4 10 1 4 66.80 1.87 1.4005 -1 11 2 4 66.97 32.00 1.3973 -6 6 1 4 67.59 1.38 1.3860 6 2 1 4 67.84 5.49 1.3815 -4 6 3 4 68.29 10.74 1.3735 5 1 2 4 69.20 6.55 1.3575 2 6 3 4 69.38 4.92 1.3546 1 11 2 4 70.06 2.14 1.3431 5 3 2 4 70.84 1.17 1.3301 -1 9 3 4 71.02 2.01 1.3272 -3 11 2 4 71.10 2.31 1.3259 -5 5 3 4 71.25 1.22 1.3235 -6 6 2 4 71.38 2.82 1.3214 7 1 0 4 71.44 2.79 1.3205 -1 1 4 4 72.30 2.29 1.3068 0 12 2 4 72.90 8.68 1.2975 0 0 4 2 73.11 17.66 1.2943 -2 12 2 4 73.13 1.70 1.2941 -5 9 2 4 74.66 3.11 1.2713 -2 4 4 4 74.83 2.81 1.2688 -7 5 1 4 74.92 1.51 1.2675 -7 3 2 4 74.97 2.60 1.2668 4 12 0 4 75.55 1.17 1.2585 -2 10 3 4 76.00 1.59 1.2522 4 2 3 4 76.11 3.66 1.2506 -4 0 4 2 78.06 2.97 1.2242 2 12 2 4 78.42 1.30 1.2194 6 0 2 2 80.42 1.90 1.1941 -4 12 2 4 81.08 2.94 1.1861 2 0 4 2 81.61 7.92 1.1797 -5 11 2 4 83.12 1.41 1.1621 1 15 1 4 83.36 1.81 1.1593 8 0 0 2 87.30 1.20 1.1169 -6 0 4 2 87.67 2.50 1.1131 3 1 4 4 88.25 1.66 1.1073 7 9 0 4 89.40 1.13 1.0960 5 5 3 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.