Donpeacorite Stimpfl M American Mineralogist 90 (2005) 155-161 The Mn, Mg-intracrystalline exchange reaction in donpeacorite (Mn0.54Ca0.03Mg1.43Si2O6) and its relation to the fractionation behavior of Mn in Fe, Mg-orthopyroxene Sample: quenched from 980 deg C DIS _database_code_amcsd 0003668 CELL PARAMETERS: 18.3653 8.8819 5.2305 90.000 90.000 90.000 SPACE GROUP: Pbca X-RAY WAVELENGTH: 1.541838 Cell Volume: 853.193 Density (g/cm3): 3.390 MAX. ABS. INTENSITY / VOLUME**2: 5.791237486 RIR: 0.556 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 13.87 1.51 6.3841 2 1 0 4 19.33 4.18 4.5913 4 0 0 2 19.99 2.31 4.4409 0 2 0 2 21.97 17.40 4.0460 2 1 1 8 24.53 1.24 3.6295 3 1 1 8 26.78 25.10 3.3292 1 2 1 8 27.74 18.27 3.2163 4 1 1 8 27.95 81.38 3.1921 4 2 0 4 28.09 100.00 3.1763 2 2 1 8 30.17 62.65 2.9625 3 2 1 8 30.90 87.70 2.8939 6 1 0 4 31.42 38.91 2.8473 5 1 1 8 32.87 43.00 2.7247 4 2 1 8 34.65 4.34 2.5891 1 0 2 4 35.17 62.28 2.5515 1 3 1 8 35.45 14.38 2.5321 6 1 1 8 35.70 63.38 2.5152 2 0 2 4 36.08 34.32 2.4893 5 2 1 8 36.21 21.39 2.4807 2 3 1 8 37.39 18.32 2.4050 3 0 2 4 38.79 1.11 2.3214 3 1 2 8 39.75 10.84 2.2674 7 1 1 8 40.13 5.22 2.2469 4 3 1 8 40.32 2.02 2.2367 1 2 2 8 41.00 3.86 2.2015 4 1 2 8 42.43 39.06 2.1304 5 0 2 4 42.48 4.71 2.1280 6 3 0 4 42.76 10.02 2.1148 3 2 2 8 42.87 29.45 2.1093 5 3 1 8 43.65 8.67 2.0737 7 2 1 8 43.69 12.02 2.0716 5 1 2 8 44.28 5.27 2.0456 8 1 1 8 44.42 4.45 2.0393 8 2 0 4 44.61 13.44 2.0314 1 4 1 8 45.37 8.80 1.9990 4 4 0 4 45.46 13.95 1.9951 2 4 1 8 46.05 34.58 1.9711 6 3 1 8 46.60 1.19 1.9490 1 3 2 8 46.86 1.07 1.9387 3 4 1 8 47.88 7.73 1.9000 8 2 1 8 49.19 11.38 1.8522 7 0 2 4 50.28 6.41 1.8147 6 2 2 8 50.64 1.82 1.8027 4 3 2 8 50.76 8.36 1.7985 10 1 0 4 51.14 5.43 1.7860 5 4 1 8 52.47 16.68 1.7440 2 5 0 4 52.95 1.89 1.7292 5 3 2 8 53.46 7.18 1.7140 8 3 1 8 53.61 9.58 1.7095 7 2 2 8 54.15 7.21 1.6936 8 1 2 8 54.44 3.13 1.6855 1 4 2 8 54.56 5.20 1.6819 2 1 3 8 55.18 6.11 1.6646 2 4 2 8 55.54 3.68 1.6545 2 5 1 8 55.79 5.38 1.6477 3 1 3 8 56.40 1.13 1.6314 3 4 2 8 56.72 21.70 1.6229 0 2 3 4 56.76 1.14 1.6219 3 5 1 8 56.96 13.05 1.6166 1 2 3 8 57.26 9.92 1.6088 9 0 2 4 57.62 16.63 1.5997 9 3 1 8 57.77 1.80 1.5960 8 4 0 4 58.29 1.92 1.5830 9 1 2 8 58.43 1.39 1.5794 4 5 1 8 60.23 9.03 1.5364 6 5 0 4 60.49 9.67 1.5304 12 0 0 2 60.54 3.34 1.5293 5 5 1 8 61.28 4.27 1.5126 9 2 2 8 61.98 27.79 1.4973 1 3 3 8 62.06 28.24 1.4955 10 3 1 8 62.66 9.56 1.4826 2 3 3 8 62.72 1.72 1.4813 6 4 2 8 62.77 24.85 1.4803 0 6 0 2 63.06 1.11 1.4741 6 5 1 8 65.30 12.70 1.4289 3 5 2 8 65.57 1.84 1.4236 10 2 2 8 65.64 2.55 1.4223 7 4 2 8 65.76 1.14 1.4201 1 6 1 8 65.97 2.02 1.4160 7 5 1 8 66.43 14.72 1.4073 11 0 2 4 66.76 27.03 1.4011 11 3 1 8 67.12 1.59 1.3946 12 2 1 8 67.34 2.72 1.3905 5 3 3 8 67.37 5.97 1.3899 11 1 2 8 67.91 3.67 1.3802 7 2 3 8 68.41 4.96 1.3713 0 4 3 4 68.63 1.85 1.3675 1 4 3 8 68.81 2.62 1.3643 5 5 2 8 69.73 9.61 1.3487 6 3 3 8 70.36 1.76 1.3381 3 4 3 8 71.73 13.55 1.3158 12 3 1 8 71.85 2.20 1.3139 4 4 3 8 72.03 1.14 1.3110 9 1 3 8 72.32 11.60 1.3065 12 1 2 8 72.46 5.21 1.3043 1 0 4 4 72.50 1.51 1.3037 13 2 1 8 72.50 3.05 1.3037 7 3 3 8 72.89 3.14 1.2977 14 1 0 4 73.37 4.30 1.2905 1 1 4 8 74.15 1.53 1.2788 3 0 4 4 74.28 1.13 1.2768 10 5 0 4 74.35 14.22 1.2758 2 6 2 8 75.40 6.87 1.2606 3 6 2 8 75.48 1.65 1.2595 14 1 1 8 75.61 7.25 1.2576 4 0 4 4 76.03 2.06 1.2518 10 1 3 8 76.58 1.26 1.2441 8 6 0 4 77.06 5.16 1.2376 8 5 2 8 77.40 2.39 1.2330 2 5 3 8 78.37 1.97 1.2202 5 1 4 8 78.43 2.24 1.2194 3 5 3 8 78.72 3.95 1.2157 5 6 2 8 80.56 7.48 1.1924 9 5 2 8 81.00 2.16 1.1871 5 2 4 8 82.52 1.26 1.1690 5 7 1 8 83.05 1.20 1.1628 10 3 3 8 83.28 1.43 1.1603 7 1 4 8 83.62 2.07 1.1564 7 6 2 8 84.39 2.52 1.1478 16 0 0 2 85.45 3.18 1.1362 8 0 4 4 87.64 1.31 1.1134 12 2 3 8 87.85 1.45 1.1113 16 2 0 4 88.68 2.61 1.1031 11 5 2 8 88.91 2.31 1.1008 8 2 4 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.