Clinoenstatite Tribaudino M, Nestola F, Camara F, Domeneghetti M C American Mineralogist 87 (2002) 648-657 The high-temperature P2_1/c - C2/c phase transition in Fe-free pyroxene (Ca.15Mg1.85Si2O6): Structural and thermodynamic behavior Sample: dien1 T = 25 deg C Locality: synthetic _database_code_amcsd 0002800 CELL PARAMETERS: 9.6510 8.8460 5.2020 90.000 108.340 90.000 SPACE GROUP: P2_1/c X-RAY WAVELENGTH: 1.541838 Cell Volume: 421.551 Density (g/cm3): 3.200 MAX. ABS. INTENSITY / VOLUME**2: 8.857797845 RIR: 0.901 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 20.08 6.95 4.4230 0 2 0 2 20.60 6.02 4.3116 0 1 1 4 25.13 1.80 3.5439 1 1 1 4 26.76 2.55 3.3308 -1 2 1 4 27.07 35.46 3.2945 0 2 1 4 28.04 34.98 3.1817 2 2 0 4 29.90 100.00 2.9885 -2 2 1 4 30.71 1.77 2.9116 1 2 1 4 30.89 27.24 2.8952 -3 1 1 4 30.98 58.04 2.8865 3 1 0 4 31.88 1.23 2.8068 1 3 0 4 35.22 23.80 2.5480 -1 3 1 4 35.46 6.77 2.5316 0 3 1 4 35.46 7.88 2.5313 -2 0 2 2 36.39 42.54 2.4689 0 0 2 2 36.80 22.29 2.4425 2 2 1 4 37.72 8.40 2.3846 -2 3 1 4 40.63 8.32 2.2207 3 1 1 4 40.73 7.17 2.2151 1 0 2 2 42.05 7.56 2.1488 1 1 2 4 42.55 29.75 2.1246 -3 3 1 4 42.62 1.76 2.1211 3 3 0 4 43.11 4.77 2.0982 -4 2 1 4 44.28 1.87 2.0457 -3 2 2 4 44.71 8.57 2.0269 -4 0 2 2 44.72 1.28 2.0266 -1 4 1 4 44.91 8.78 2.0183 0 4 1 4 45.55 3.67 1.9915 2 4 0 4 45.93 2.85 1.9757 -4 1 2 4 46.79 6.67 1.9414 -2 4 1 4 46.98 6.49 1.9339 2 0 2 2 49.15 2.33 1.8536 -4 3 1 4 50.90 5.38 1.7941 5 1 0 4 50.92 1.18 1.7932 -3 4 1 4 51.58 7.22 1.7720 2 2 2 4 51.75 1.81 1.7665 -5 2 1 4 51.79 3.20 1.7651 2 4 1 4 52.69 7.51 1.7371 1 5 0 4 53.29 1.79 1.7189 4 2 1 4 55.14 1.46 1.6655 0 5 1 4 55.15 2.72 1.6654 -2 4 2 4 55.43 2.52 1.6576 -3 1 3 4 55.73 6.40 1.6494 3 1 2 4 55.81 2.53 1.6473 0 4 2 4 57.10 23.45 1.6130 -5 3 1 4 57.11 18.53 1.6128 -2 2 3 4 57.59 1.19 1.6004 -1 2 3 4 57.92 1.03 1.5922 3 4 1 4 57.97 1.84 1.5909 4 4 0 4 58.55 1.08 1.5765 4 3 1 4 60.42 2.35 1.5321 -3 5 1 4 60.43 4.94 1.5320 -6 0 2 2 60.48 4.39 1.5308 3 5 0 4 60.65 4.32 1.5268 6 0 0 2 62.15 8.95 1.4935 -2 3 3 4 62.61 10.55 1.4836 -1 3 3 4 63.05 14.48 1.4743 0 6 0 2 63.51 3.27 1.4649 4 0 2 2 63.90 1.28 1.4569 -5 1 3 4 63.95 1.26 1.4558 2 4 2 4 64.36 2.05 1.4476 -6 2 2 4 64.83 3.03 1.4381 0 5 2 4 66.61 3.02 1.4040 -3 5 2 4 66.77 1.63 1.4010 -5 2 3 4 66.77 1.07 1.4010 3 5 1 4 67.79 1.01 1.3824 1 5 2 4 67.81 27.90 1.3821 5 3 1 4 68.85 4.88 1.3636 -2 4 3 4 68.85 3.80 1.3636 1 3 3 4 69.84 1.16 1.3467 2 2 3 4 69.97 3.27 1.3445 -7 0 2 2 70.90 7.17 1.3293 -7 1 2 4 71.43 2.88 1.3206 -5 3 3 4 71.45 1.98 1.3204 0 4 3 4 73.09 2.92 1.2947 -3 0 4 2 73.10 2.05 1.2946 7 1 0 4 73.71 1.94 1.2852 -2 1 4 4 74.32 2.58 1.2763 5 1 2 4 74.48 2.49 1.2740 -2 6 2 4 74.56 1.33 1.2727 5 5 0 4 75.04 8.79 1.2658 0 6 2 4 75.05 3.07 1.2656 -4 0 4 2 75.95 1.02 1.2529 -4 1 4 4 76.33 2.07 1.2475 -7 3 1 4 78.18 1.53 1.2226 0 1 4 4 78.30 1.65 1.2211 -3 5 3 4 78.55 6.25 1.2178 3 5 2 4 80.57 1.63 1.1923 -4 6 2 4 81.48 1.27 1.1813 3 3 3 4 82.19 1.33 1.1728 -5 2 4 4 82.22 1.13 1.1725 2 6 2 4 84.63 1.07 1.1451 8 0 0 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.