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 900 deg C DIS _database_code_amcsd 0003669 CELL PARAMETERS: 18.3686 8.8828 5.2287 90.000 90.000 90.000 SPACE GROUP: Pbca X-RAY WAVELENGTH: 1.541838 Cell Volume: 853.139 Density (g/cm3): 3.391 MAX. ABS. INTENSITY / VOLUME**2: 5.770648911 RIR: 0.554 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 13.87 1.42 6.3850 2 1 0 4 19.33 4.16 4.5922 4 0 0 2 19.99 2.20 4.4414 0 2 0 2 21.97 17.91 4.0454 2 1 1 8 24.53 1.35 3.6292 3 1 1 8 26.78 25.28 3.3290 1 2 1 8 27.74 18.29 3.2163 4 1 1 8 27.95 81.99 3.1925 4 2 0 4 28.09 100.00 3.1762 2 2 1 8 30.17 62.53 2.9624 3 2 1 8 30.89 87.19 2.8944 6 1 0 4 31.42 39.21 2.8473 5 1 1 8 32.87 42.67 2.7248 4 2 1 8 34.66 4.30 2.5883 1 0 2 4 35.17 62.10 2.5515 1 3 1 8 35.45 14.64 2.5323 6 1 1 8 35.71 63.32 2.5145 2 0 2 4 36.08 33.98 2.4894 5 2 1 8 36.21 21.35 2.4807 2 3 1 8 37.40 18.25 2.4043 3 0 2 4 38.80 1.07 2.3208 3 1 2 8 39.75 10.97 2.2676 7 1 1 8 40.13 5.26 2.2470 4 3 1 8 40.33 2.07 2.2362 1 2 2 8 41.00 3.84 2.2011 4 1 2 8 42.44 38.78 2.1301 5 0 2 4 42.47 4.75 2.1283 6 3 0 4 42.77 10.16 2.1144 3 2 2 8 42.87 29.44 2.1094 5 3 1 8 43.64 8.61 2.0739 7 2 1 8 43.70 11.94 2.0713 5 1 2 8 44.28 5.28 2.0458 8 1 1 8 44.42 4.50 2.0396 8 2 0 4 44.60 13.42 2.0315 1 4 1 8 45.36 8.87 1.9992 4 4 0 4 45.46 13.94 1.9952 2 4 1 8 46.04 34.28 1.9713 6 3 1 8 46.61 1.21 1.9487 1 3 2 8 46.86 1.07 1.9388 3 4 1 8 47.87 7.58 1.9002 8 2 1 8 49.20 11.31 1.8521 7 0 2 4 50.28 6.31 1.8146 6 2 2 8 50.64 1.79 1.8025 4 3 2 8 50.75 8.43 1.7988 10 1 0 4 51.14 5.30 1.7861 5 4 1 8 52.46 16.52 1.7442 2 5 0 4 52.96 1.89 1.7291 5 3 2 8 53.45 7.14 1.7142 8 3 1 8 53.61 9.58 1.7094 7 2 2 8 54.16 7.17 1.6935 8 1 2 8 54.44 3.18 1.6854 1 4 2 8 54.58 5.22 1.6814 2 1 3 8 55.18 6.05 1.6645 2 4 2 8 55.54 3.67 1.6546 2 5 1 8 55.81 5.36 1.6472 3 1 3 8 56.40 1.10 1.6313 3 4 2 8 56.74 21.43 1.6224 0 2 3 4 56.76 1.14 1.6220 3 5 1 8 56.98 12.87 1.6162 1 2 3 8 57.27 9.86 1.6088 9 0 2 4 57.62 16.52 1.5998 9 3 1 8 57.76 1.74 1.5963 8 4 0 4 58.29 1.89 1.5830 9 1 2 8 58.43 1.37 1.5795 4 5 1 8 60.23 8.85 1.5366 6 5 0 4 60.48 9.53 1.5307 12 0 0 2 60.54 3.32 1.5294 5 5 1 8 61.28 4.25 1.5126 9 2 2 8 61.99 27.44 1.4970 1 3 3 8 62.05 27.90 1.4957 10 3 1 8 62.68 9.51 1.4823 2 3 3 8 62.73 1.69 1.4812 6 4 2 8 62.76 24.57 1.4805 0 6 0 2 63.06 1.11 1.4742 6 5 1 8 65.31 12.48 1.4288 3 5 2 8 65.57 1.81 1.4237 10 2 2 8 65.64 2.55 1.4223 7 4 2 8 65.75 1.14 1.4202 1 6 1 8 65.96 2.01 1.4161 7 5 1 8 66.43 14.52 1.4073 11 0 2 4 66.75 26.64 1.4013 11 3 1 8 67.11 1.56 1.3947 12 2 1 8 67.35 2.65 1.3903 5 3 3 8 67.37 5.86 1.3900 11 1 2 8 67.92 3.59 1.3800 7 2 3 8 68.43 4.88 1.3711 0 4 3 4 68.64 1.82 1.3673 1 4 3 8 68.81 2.57 1.3643 5 5 2 8 69.74 9.40 1.3485 6 3 3 8 70.37 1.72 1.3379 3 4 3 8 71.72 13.39 1.3160 12 3 1 8 71.86 2.17 1.3138 4 4 3 8 72.04 1.14 1.3109 9 1 3 8 72.32 11.42 1.3066 12 1 2 8 72.49 1.50 1.3039 13 2 1 8 72.49 5.11 1.3039 1 0 4 4 72.51 2.98 1.3036 7 3 3 8 72.88 3.09 1.2980 14 1 0 4 73.39 4.22 1.2901 1 1 4 8 74.18 1.52 1.2784 3 0 4 4 74.27 1.13 1.2770 10 5 0 4 74.35 14.01 1.2758 2 6 2 8 75.40 6.77 1.2606 3 6 2 8 75.46 1.64 1.2597 14 1 1 8 75.64 7.09 1.2572 4 0 4 4 76.03 2.05 1.2517 10 1 3 8 76.57 1.23 1.2442 8 6 0 4 77.05 5.08 1.2377 8 5 2 8 77.41 2.36 1.2329 2 5 3 8 78.39 1.91 1.2199 5 1 4 8 78.44 2.19 1.2192 3 5 3 8 78.71 3.85 1.2157 5 6 2 8 80.55 7.32 1.1925 9 5 2 8 81.02 2.09 1.1868 5 2 4 8 82.51 1.24 1.1691 5 7 1 8 83.06 1.18 1.1628 10 3 3 8 83.30 1.39 1.1600 7 1 4 8 83.62 2.03 1.1564 7 6 2 8 84.37 2.47 1.1480 16 0 0 2 85.47 3.09 1.1360 8 0 4 4 87.64 1.26 1.1134 12 2 3 8 87.83 1.42 1.1115 16 2 0 4 88.67 2.54 1.1031 11 5 2 8 88.93 2.28 1.1006 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.