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 856 deg C ORD _database_code_amcsd 0003671 CELL PARAMETERS: 18.3645 8.8810 5.2284 90.000 90.000 90.000 SPACE GROUP: Pbca X-RAY WAVELENGTH: 1.541838 Cell Volume: 852.727 Density (g/cm3): 3.392 MAX. ABS. INTENSITY / VOLUME**2: 5.771997417 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 1.28 6.3837 2 1 0 4 19.33 4.20 4.5911 4 0 0 2 20.00 2.14 4.4405 0 2 0 2 21.97 18.39 4.0449 2 1 1 8 24.53 1.39 3.6287 3 1 1 8 26.78 25.35 3.3285 1 2 1 8 27.74 18.21 3.2157 4 1 1 8 27.95 82.68 3.1918 4 2 0 4 28.10 100.00 3.1757 2 2 1 8 30.17 62.56 2.9620 3 2 1 8 30.90 87.14 2.8937 6 1 0 4 31.42 39.76 2.8468 5 1 1 8 32.88 42.72 2.7243 4 2 1 8 34.66 4.36 2.5881 1 0 2 4 35.18 62.19 2.5511 1 3 1 8 35.46 15.03 2.5318 6 1 1 8 35.71 63.57 2.5143 2 0 2 4 36.09 34.11 2.4889 5 2 1 8 36.22 21.37 2.4803 2 3 1 8 37.41 18.33 2.4041 3 0 2 4 38.81 1.06 2.3206 3 1 2 8 39.76 11.11 2.2672 7 1 1 8 40.14 5.28 2.2466 4 3 1 8 40.34 2.18 2.2360 1 2 2 8 41.01 3.87 2.2009 4 1 2 8 42.44 38.88 2.1298 5 0 2 4 42.48 4.85 2.1279 6 3 0 4 42.77 10.41 2.1142 3 2 2 8 42.88 29.46 2.1090 5 3 1 8 43.65 8.60 2.0735 7 2 1 8 43.71 11.86 2.0711 5 1 2 8 44.28 5.38 2.0454 8 1 1 8 44.43 4.62 2.0392 8 2 0 4 44.61 13.66 2.0311 1 4 1 8 45.37 9.00 1.9988 4 4 0 4 45.47 13.97 1.9948 2 4 1 8 46.05 34.46 1.9709 6 3 1 8 46.61 1.28 1.9485 1 3 2 8 46.87 1.06 1.9385 3 4 1 8 47.88 7.62 1.8998 8 2 1 8 49.20 11.37 1.8518 7 0 2 4 50.29 6.37 1.8143 6 2 2 8 50.65 1.84 1.8022 4 3 2 8 50.77 8.56 1.7984 10 1 0 4 51.15 5.29 1.7858 5 4 1 8 52.47 16.68 1.7439 2 5 0 4 52.96 1.95 1.7289 5 3 2 8 53.46 7.19 1.7138 8 3 1 8 53.62 9.69 1.7091 7 2 2 8 54.17 7.24 1.6933 8 1 2 8 54.45 3.22 1.6851 1 4 2 8 54.59 5.31 1.6813 2 1 3 8 55.19 6.09 1.6642 2 4 2 8 55.55 3.71 1.6543 2 5 1 8 55.81 5.49 1.6471 3 1 3 8 56.41 1.08 1.6311 3 4 2 8 56.74 21.52 1.6223 0 2 3 4 56.77 1.15 1.6217 3 5 1 8 56.99 12.95 1.6160 1 2 3 8 57.28 9.94 1.6085 9 0 2 4 57.63 16.69 1.5995 9 3 1 8 57.77 1.76 1.5959 8 4 0 4 58.30 1.84 1.5828 9 1 2 8 58.44 1.35 1.5792 4 5 1 8 59.64 1.01 1.5504 5 1 3 8 60.24 8.97 1.5363 6 5 0 4 60.50 9.61 1.5304 12 0 0 2 60.55 3.34 1.5291 5 5 1 8 61.29 4.25 1.5123 9 2 2 8 62.00 27.74 1.4969 1 3 3 8 62.07 28.20 1.4954 10 3 1 8 62.68 9.62 1.4822 2 3 3 8 62.74 1.72 1.4810 6 4 2 8 62.78 24.71 1.4802 0 6 0 2 63.07 1.12 1.4739 6 5 1 8 65.32 12.69 1.4286 3 5 2 8 65.58 1.85 1.4234 10 2 2 8 65.65 2.64 1.4221 7 4 2 8 65.77 1.16 1.4199 1 6 1 8 65.98 2.04 1.4159 7 5 1 8 66.45 14.72 1.4070 11 0 2 4 66.77 26.87 1.4010 11 3 1 8 67.13 1.58 1.3945 12 2 1 8 67.36 2.68 1.3901 5 3 3 8 67.38 5.90 1.3897 11 1 2 8 67.93 3.67 1.3798 7 2 3 8 68.44 4.89 1.3709 0 4 3 4 68.65 1.82 1.3671 1 4 3 8 68.83 2.62 1.3641 5 5 2 8 69.75 9.49 1.3483 6 3 3 8 70.38 1.78 1.3378 3 4 3 8 71.74 13.54 1.3157 12 3 1 8 71.87 2.20 1.3136 4 4 3 8 72.05 1.18 1.3107 9 1 3 8 72.33 11.56 1.3063 12 1 2 8 72.50 5.16 1.3038 1 0 4 4 72.51 1.52 1.3037 13 2 1 8 72.52 3.04 1.3034 7 3 3 8 72.89 3.09 1.2977 14 1 0 4 73.40 4.29 1.2900 1 1 4 8 74.18 1.53 1.2783 3 0 4 4 74.29 1.13 1.2767 10 5 0 4 74.37 14.22 1.2755 2 6 2 8 75.41 6.86 1.2604 3 6 2 8 75.48 1.67 1.2595 14 1 1 8 75.65 7.20 1.2571 4 0 4 4 76.05 2.08 1.2515 10 1 3 8 76.59 1.26 1.2440 8 6 0 4 77.07 5.17 1.2374 8 5 2 8 77.42 2.38 1.2327 2 5 3 8 78.40 1.94 1.2198 5 1 4 8 78.45 2.22 1.2191 3 5 3 8 78.73 3.88 1.2155 5 6 2 8 80.57 7.44 1.1923 9 5 2 8 81.03 2.13 1.1867 5 2 4 8 82.53 1.27 1.1688 5 7 1 8 83.07 1.19 1.1626 10 3 3 8 83.31 1.42 1.1599 7 1 4 8 83.64 2.03 1.1562 7 6 2 8 84.39 2.51 1.1478 16 0 0 2 85.29 1.01 1.1379 9 4 3 8 85.48 3.16 1.1359 8 0 4 4 87.66 1.27 1.1132 12 2 3 8 87.85 1.45 1.1113 16 2 0 4 88.69 2.58 1.1029 11 5 2 8 88.94 2.35 1.1004 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.