Enstatite Hugh-Jones D A, Chopelas A, Angel R J Physics and Chemistry of Minerals 24 (1997) 301-310 Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Sample: P = 4.03 GPa, natural orthopyroxene _database_code_amcsd 0008022 CELL PARAMETERS: 18.0770 8.6907 5.1349 90.000 90.000 90.000 SPACE GROUP: Pbca X-RAY WAVELENGTH: 1.541838 Cell Volume: 806.702 Density (g/cm3): 3.433 MAX. ABS. INTENSITY / VOLUME**2: 5.174463036 RIR: 0.491 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 19.64 2.49 4.5192 4 0 0 2 20.44 5.80 4.3453 0 2 0 2 20.68 1.47 4.2943 1 1 1 8 22.39 14.17 3.9713 2 1 1 8 27.34 39.48 3.2626 1 2 1 8 28.24 20.23 3.1602 4 1 1 8 28.50 69.44 3.1323 4 2 0 4 28.67 96.39 3.1140 2 2 1 8 29.65 1.85 3.0128 6 0 0 2 30.77 59.02 2.9058 3 2 1 8 31.43 100.00 2.8466 6 1 0 4 31.98 39.18 2.7987 5 1 1 8 32.46 1.01 2.7587 2 3 0 4 33.51 50.22 2.6741 4 2 1 8 34.95 1.53 2.5675 0 0 2 2 35.31 3.27 2.5419 1 0 2 4 35.94 66.88 2.4989 1 3 1 8 36.08 13.48 2.4897 6 1 1 8 36.38 79.25 2.4697 2 0 2 4 36.77 35.86 2.4442 5 2 1 8 36.85 2.95 2.4389 4 3 0 4 36.99 18.75 2.4302 2 3 1 8 37.87 1.12 2.3757 2 1 2 8 38.10 10.81 2.3620 3 0 2 4 38.69 5.96 2.3273 3 3 1 8 39.54 2.31 2.2793 3 1 2 8 39.90 1.04 2.2596 8 0 0 2 40.41 3.17 2.2324 4 0 2 4 40.45 1.25 2.2302 6 2 1 8 40.45 11.89 2.2299 7 1 1 8 40.97 5.11 2.2030 4 3 1 8 41.78 3.17 2.1622 4 1 2 8 43.22 38.79 2.0933 5 0 2 4 43.33 3.23 2.0882 6 3 0 4 43.61 7.64 2.0752 3 2 2 8 43.75 28.43 2.0691 5 3 1 8 44.46 7.79 2.0377 7 2 1 8 44.52 16.85 2.0351 5 1 2 8 45.06 4.91 2.0120 8 1 1 8 45.23 4.34 2.0048 8 2 0 4 45.61 16.67 1.9888 1 4 1 8 45.69 1.94 1.9856 4 2 2 8 46.37 11.11 1.9581 4 4 0 4 46.48 14.00 1.9536 2 4 1 8 46.97 39.71 1.9344 6 3 1 8 47.70 1.49 1.9065 6 1 2 8 47.90 1.69 1.8990 3 4 1 8 48.76 8.31 1.8675 8 2 1 8 49.84 1.74 1.8296 4 4 1 8 50.10 8.58 1.8207 7 0 2 4 51.26 7.60 1.7822 6 2 2 8 51.65 8.34 1.7698 10 1 0 4 51.70 1.69 1.7682 4 3 2 8 52.25 6.33 1.7507 5 4 1 8 53.70 13.22 1.7069 2 5 0 4 54.05 1.56 1.6967 5 3 2 8 54.52 7.57 1.6833 8 3 1 8 54.66 9.73 1.6793 7 2 2 8 55.17 11.14 1.6648 8 1 2 8 55.40 1.04 1.6585 0 4 2 4 55.65 2.71 1.6516 1 4 2 8 55.67 2.85 1.6511 2 1 3 8 56.40 6.96 1.6313 2 4 2 8 56.84 4.51 1.6197 2 5 1 8 56.92 8.40 1.6177 3 1 3 8 57.65 1.41 1.5991 3 4 2 8 57.90 15.68 1.5925 0 2 3 4 58.11 1.18 1.5873 10 2 1 8 58.15 18.45 1.5864 1 2 3 8 58.33 11.27 1.5820 9 0 2 4 58.34 1.11 1.5817 7 4 1 8 58.40 2.20 1.5801 8 2 2 8 58.76 16.53 1.5714 9 3 1 8 58.98 2.16 1.5662 8 4 0 4 59.38 2.86 1.5564 9 1 2 8 59.78 1.17 1.5469 4 5 1 8 60.36 1.18 1.5336 10 3 0 4 60.82 1.04 1.5231 5 1 3 8 61.56 8.94 1.5064 12 0 0 2 61.60 12.69 1.5056 6 5 0 4 61.93 2.58 1.4983 5 5 1 8 62.48 3.24 1.4865 9 2 2 8 63.29 37.77 1.4695 10 3 1 8 63.32 45.62 1.4688 1 3 3 8 63.41 2.00 1.4669 6 1 3 8 63.87 1.71 1.4574 5 2 3 8 64.02 3.82 1.4544 2 3 3 8 64.09 2.45 1.4529 6 4 2 8 64.31 30.76 1.4484 0 6 0 2 65.69 1.27 1.4214 2 5 2 8 66.83 13.80 1.3999 3 5 2 8 66.86 1.40 1.3993 10 2 2 8 67.07 2.15 1.3955 7 4 2 8 67.37 2.10 1.3899 1 6 1 8 67.39 1.53 1.3896 10 4 0 4 67.47 1.83 1.3883 7 5 1 8 67.69 20.16 1.3841 11 0 2 4 68.09 30.12 1.3770 11 3 1 8 68.40 1.14 1.3716 12 2 1 8 68.67 4.75 1.3669 11 1 2 8 68.79 4.74 1.3646 5 3 3 8 69.32 6.99 1.3555 7 2 3 8 69.97 4.81 1.3445 0 4 3 4 70.19 3.23 1.3408 1 4 3 8 70.41 2.61 1.3372 5 5 2 8 71.23 6.17 1.3238 6 3 3 8 71.96 3.18 1.3123 3 4 3 8 72.79 1.33 1.2993 12 0 2 4 73.17 16.75 1.2934 12 3 1 8 73.48 1.36 1.2887 4 4 3 8 73.51 2.28 1.2884 9 1 3 8 73.73 13.67 1.2850 12 1 2 8 73.90 1.48 1.2824 13 2 1 8 74.03 7.99 1.2805 1 0 4 4 74.07 3.33 1.2799 7 3 3 8 74.26 3.40 1.2772 14 1 0 4 74.68 1.20 1.2710 2 0 4 4 74.97 4.32 1.2668 1 1 4 8 75.95 2.01 1.2529 10 5 0 4 76.20 16.86 1.2494 2 6 2 8 76.69 1.27 1.2426 3 1 4 8 76.92 2.21 1.2394 14 1 1 8 77.26 6.52 1.2349 4 0 4 4 77.27 5.32 1.2348 3 6 2 8 78.85 7.24 1.2140 8 5 2 8 79.26 1.26 1.2086 2 5 3 8 80.09 3.21 1.1982 5 1 4 8 80.17 1.36 1.1972 4 7 0 4 80.32 3.53 1.1953 3 5 3 8 80.67 4.54 1.1911 5 6 2 8 81.84 1.20 1.1770 13 2 2 8 82.44 7.26 1.1699 9 5 2 8 82.83 2.73 1.1654 5 2 4 8 84.67 1.93 1.1447 5 7 1 8 84.90 1.84 1.1422 10 3 3 8 85.14 1.90 1.1396 7 1 4 8 85.70 2.29 1.1335 7 6 2 8 86.05 2.82 1.1298 16 0 0 2 86.97 1.25 1.1202 6 7 1 8 87.26 1.55 1.1173 9 4 3 8 87.37 2.14 1.1162 8 0 4 4 87.85 1.06 1.1113 7 2 4 8 89.66 1.34 1.0935 16 2 0 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.