Ameghinite Dal Negro A, Pozas J M M, Ungaretti L American Mineralogist 60 (1975) 879-883 The crystal structure of ameghinite _database_code_amcsd 0000470 CELL PARAMETERS: 18.4280 9.8820 6.3260 90.000 104.400 90.000 SPACE GROUP: C2/c X-RAY WAVELENGTH: 1.541838 Cell Volume: 1115.807 Density (g/cm3): 2.041 MAX. ABS. INTENSITY / VOLUME**2: 4.312159105 RIR: 0.688 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 9.91 4.67 8.9245 2 0 0 2 16.70 11.84 5.3099 -1 1 1 4 17.40 4.52 5.0971 3 1 0 4 17.95 52.04 4.9410 0 2 0 2 18.73 18.00 4.7371 1 1 1 4 19.90 9.04 4.4623 4 0 0 2 20.15 3.69 4.4073 -3 1 1 4 20.55 3.81 4.3227 2 2 0 4 23.12 4.36 3.8462 0 2 1 4 23.72 3.79 3.7514 -2 2 1 4 24.99 11.67 3.5630 3 1 1 4 26.55 23.96 3.3575 5 1 0 4 26.92 2.38 3.3116 4 2 0 4 27.54 11.24 3.2393 1 3 0 4 28.17 4.64 3.1682 -4 2 1 4 28.35 35.16 3.1480 -2 0 2 2 29.15 100.00 3.0636 0 0 2 2 29.74 8.05 3.0038 -1 1 2 4 30.04 6.98 2.9748 6 0 0 2 30.63 6.33 2.9187 -1 3 1 4 30.68 13.84 2.9142 -3 1 2 4 31.03 3.08 2.8822 -4 0 2 2 31.83 15.48 2.8118 1 3 1 4 33.04 3.42 2.7115 4 2 1 4 33.20 8.06 2.6989 2 0 2 2 33.76 13.13 2.6550 -2 2 2 4 34.44 1.53 2.6037 0 2 2 4 35.14 2.26 2.5540 -6 2 1 4 35.21 32.96 2.5486 6 2 0 4 36.00 1.61 2.4946 3 3 1 4 36.37 7.19 2.4705 0 4 0 2 36.39 7.98 2.4690 7 1 0 4 36.49 1.09 2.4621 -6 0 2 2 37.78 1.84 2.3810 2 4 0 4 37.99 2.71 2.3686 2 2 2 4 39.32 3.84 2.2913 0 4 1 4 39.61 1.81 2.2754 4 0 2 2 39.69 1.08 2.2707 -2 4 1 4 40.30 4.10 2.2379 -3 3 2 4 40.43 11.39 2.2311 8 0 0 2 40.95 10.62 2.2036 -6 2 2 4 41.06 4.58 2.1984 -7 1 2 4 41.47 3.38 2.1773 1 3 2 4 41.60 11.35 2.1712 2 4 1 4 41.79 1.44 2.1614 4 4 0 4 43.56 6.52 2.0775 -5 3 2 4 43.60 3.78 2.0757 -8 2 1 4 43.80 5.73 2.0668 4 2 2 4 43.86 1.26 2.0643 -8 0 2 2 44.11 4.76 2.0529 -3 1 3 4 44.33 5.47 2.0435 -1 1 3 4 44.56 2.64 2.0334 8 2 0 4 44.96 7.86 2.0163 7 3 0 4 46.21 1.11 1.9644 1 5 0 4 46.31 1.08 1.9603 -5 1 3 4 46.72 1.32 1.9445 9 1 0 4 46.85 1.81 1.9391 -2 2 3 4 46.93 3.64 1.9362 1 1 3 4 47.26 2.26 1.9231 0 4 2 4 47.80 2.27 1.9028 -6 4 1 4 47.86 1.61 1.9006 6 4 0 4 48.26 1.89 1.8857 -1 5 1 4 48.54 6.17 1.8757 -4 4 2 4 48.54 3.10 1.8756 3 5 0 4 48.95 2.47 1.8607 -7 3 2 4 49.09 7.94 1.8559 1 5 1 4 49.71 5.53 1.8342 -3 5 1 4 50.05 6.50 1.8223 2 4 2 4 50.35 1.30 1.8124 7 3 1 4 50.38 5.15 1.8111 8 2 1 4 51.28 2.03 1.7815 6 2 2 4 51.64 5.36 1.7701 3 1 3 4 51.94 2.62 1.7605 5 3 2 4 52.47 2.98 1.7439 -6 4 2 4 52.53 1.97 1.7422 -10 0 2 2 52.75 2.24 1.7354 9 1 1 4 52.75 1.17 1.7352 -9 3 1 4 53.09 2.23 1.7252 -10 2 1 4 53.29 5.24 1.7191 -5 5 1 4 53.61 1.03 1.7096 -5 3 3 4 54.67 2.48 1.6787 10 2 0 4 54.85 2.79 1.6737 4 4 2 4 55.97 7.34 1.6430 -10 2 2 4 56.13 5.18 1.6386 -8 2 3 4 56.76 1.60 1.6218 8 0 2 2 56.85 1.05 1.6197 2 6 0 4 57.57 1.26 1.6009 -7 3 3 4 58.09 3.53 1.5878 5 1 3 4 58.55 4.03 1.5765 -2 0 4 2 59.47 3.13 1.5542 9 3 1 4 59.80 1.25 1.5466 3 5 2 4 60.43 2.55 1.5318 0 0 4 2 61.77 1.63 1.5019 -2 2 4 4 61.77 1.01 1.5017 2 4 3 4 62.50 1.20 1.4859 9 1 2 4 66.01 1.03 1.4152 7 1 3 4 66.51 1.53 1.4059 2 6 2 4 71.21 1.85 1.3242 3 7 1 4 72.20 2.55 1.3084 -5 7 1 4 72.62 1.32 1.3019 0 4 4 4 72.63 1.08 1.3018 4 2 4 4 76.88 1.49 1.2400 -7 7 1 4 83.20 1.52 1.1611 -9 7 1 4 84.04 1.33 1.1516 -13 5 1 4 84.77 1.19 1.1437 -16 0 2 2 84.98 1.10 1.1413 -6 8 1 4 86.83 1.31 1.1217 0 6 4 4 87.10 1.22 1.1190 -6 6 4 4 87.91 1.06 1.1106 3 7 3 4 87.96 1.44 1.1102 15 1 1 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.