Spiroffite Cooper M A, Hawthorne F C The Canadian Mineralogist 34 (1996) 821-826 The crystal structure of spiroffite Locality: Moctezuma, Sonora, Mexico _database_code_amcsd 0005504 CELL PARAMETERS: 12.8700 5.3813 11.8880 90.000 98.220 90.000 SPACE GROUP: C2/c X-RAY WAVELENGTH: 1.541838 Cell Volume: 814.872 Density (g/cm3): 5.058 MAX. ABS. INTENSITY / VOLUME**2: 52.06888459 RIR: 3.352 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 13.90 9.24 6.3689 2 0 0 2 17.89 76.62 4.9571 1 1 0 4 19.04 27.78 4.6620 -1 1 1 4 19.82 9.08 4.4799 1 1 1 4 21.99 58.10 4.0429 2 0 2 2 24.11 3.59 3.6909 1 1 2 4 26.97 94.77 3.3059 -3 1 1 4 28.22 1.24 3.1625 -1 1 3 4 28.64 3.11 3.1167 3 1 1 4 29.27 5.00 3.0507 -3 1 2 4 29.82 100.00 2.9957 1 1 3 4 29.94 33.39 2.9848 -4 0 2 2 31.63 40.95 2.8288 -2 0 4 2 32.32 18.51 2.7698 3 1 2 4 33.26 2.65 2.6934 -3 1 3 4 33.30 12.11 2.6906 0 2 0 2 33.87 13.80 2.6466 4 0 2 2 34.58 12.75 2.5938 -1 1 4 4 35.40 1.00 2.5360 2 0 4 2 36.24 2.05 2.4785 2 2 0 4 36.37 3.04 2.4700 1 1 4 4 36.63 24.00 2.4530 -2 2 1 4 37.31 1.87 2.4099 3 1 3 4 38.48 2.97 2.3396 -3 1 4 4 38.63 4.47 2.3310 -2 2 2 4 38.87 11.63 2.3168 -5 1 1 4 40.17 10.71 2.2449 -5 1 2 4 40.26 1.87 2.2399 2 2 2 4 40.66 24.26 2.2187 0 2 3 4 40.90 20.54 2.2066 5 1 1 4 42.03 2.03 2.1499 -2 2 3 4 42.59 1.20 2.1230 6 0 0 2 43.19 8.41 2.0948 -6 0 2 2 43.25 1.58 2.0921 3 1 4 4 44.02 1.43 2.0570 -4 2 1 4 44.06 1.35 2.0552 4 2 0 4 44.31 10.00 2.0445 2 2 3 4 44.57 8.34 2.0329 -3 1 5 4 44.84 1.76 2.0215 4 0 4 2 45.38 5.88 1.9985 -4 2 2 4 45.50 4.66 1.9936 4 2 1 4 46.59 14.28 1.9496 -2 2 4 4 47.57 3.17 1.9116 6 0 2 2 48.23 6.51 1.8868 4 2 2 4 49.88 10.77 1.8281 3 1 5 4 50.63 11.12 1.8031 2 0 6 2 51.03 4.08 1.7897 1 1 6 4 51.45 8.85 1.7762 1 3 0 4 51.84 11.10 1.7636 -5 1 5 4 51.87 3.53 1.7628 -4 2 4 4 52.24 1.35 1.7512 1 3 1 4 52.61 1.50 1.7397 -7 1 1 4 53.13 2.62 1.7238 7 1 0 4 53.62 1.71 1.7091 5 1 4 4 54.86 1.09 1.6734 7 1 1 4 55.23 13.64 1.6633 -7 1 3 4 55.31 2.36 1.6610 2 2 5 4 55.62 1.35 1.6524 3 3 0 4 56.64 9.18 1.6250 6 2 1 4 56.68 13.64 1.6240 -4 2 5 4 56.68 1.39 1.6239 3 3 1 4 56.85 17.83 1.6195 -1 1 7 4 57.01 6.85 1.6153 6 0 4 2 57.61 3.48 1.5999 -6 2 3 4 57.79 2.28 1.5955 -8 0 2 2 57.92 5.74 1.5922 8 0 0 2 58.72 1.20 1.5724 4 0 6 2 58.89 15.64 1.5682 3 3 2 4 59.30 3.56 1.5583 6 2 2 4 59.42 5.31 1.5556 -6 0 6 2 59.70 3.07 1.5488 5 1 5 4 60.33 7.92 1.5341 -1 3 4 4 61.64 1.55 1.5048 7 1 3 4 61.95 3.16 1.4978 2 2 6 4 62.16 3.01 1.4933 3 3 3 4 62.20 1.66 1.4924 -8 0 4 2 62.31 2.71 1.4901 -7 1 5 4 62.70 6.08 1.4817 4 2 5 4 62.78 1.02 1.4802 -2 0 8 2 62.97 2.13 1.4761 -3 3 4 4 63.00 1.42 1.4754 6 2 3 4 63.24 1.83 1.4703 -5 3 1 4 64.17 8.39 1.4514 -5 3 2 4 65.17 1.26 1.4315 -1 3 5 4 65.32 4.85 1.4285 -2 2 7 4 65.47 2.79 1.4255 0 2 7 4 66.06 3.84 1.4144 -4 0 8 2 66.48 1.37 1.4065 7 1 4 4 66.55 1.10 1.4051 -3 1 8 4 67.29 1.92 1.3915 -7 1 6 4 67.65 1.93 1.3849 6 2 4 4 67.83 2.30 1.3817 -9 1 1 4 67.88 2.05 1.3807 -8 2 1 4 68.35 1.44 1.3724 -8 2 2 4 68.47 1.56 1.3703 8 2 0 4 69.20 1.98 1.3576 4 2 6 4 69.84 1.33 1.3467 -6 2 6 4 69.87 3.08 1.3462 -8 2 3 4 70.33 1.09 1.3385 9 1 1 4 71.95 5.19 1.3124 -2 4 1 4 72.18 2.22 1.3087 7 1 5 4 72.51 4.40 1.3036 1 3 6 4 73.12 1.33 1.2942 9 1 2 4 74.00 1.16 1.2811 5 1 7 4 74.24 2.71 1.2774 7 3 0 4 74.57 2.89 1.2725 0 4 3 4 74.65 2.35 1.2714 5 3 4 4 74.89 1.99 1.2680 4 0 8 2 76.02 1.81 1.2520 -4 2 8 4 76.36 1.76 1.2471 1 1 9 4 76.39 1.45 1.2467 8 2 3 4 76.88 2.46 1.2401 9 1 3 4 77.25 1.43 1.2351 -10 0 4 2 79.18 1.62 1.2097 10 0 2 2 79.49 2.58 1.2057 -5 1 9 4 81.87 2.96 1.1766 0 0 10 2 82.17 1.45 1.1731 3 1 9 4 83.02 1.63 1.1632 4 4 3 4 83.26 2.08 1.1604 -10 2 1 4 84.90 1.20 1.1422 -11 1 1 4 84.97 2.74 1.1415 -9 1 7 4 85.80 1.47 1.1325 -8 2 7 4 85.94 1.16 1.1310 7 3 4 4 85.97 2.53 1.1307 2 2 9 4 86.01 3.68 1.1303 -3 3 8 4 86.09 1.99 1.1294 7 1 7 4 86.69 2.56 1.1232 -7 3 6 4 86.71 1.90 1.1229 6 4 1 4 86.75 3.30 1.1226 -4 4 5 4 86.76 1.07 1.1225 -10 2 4 4 86.78 1.44 1.1222 6 2 7 4 87.20 1.09 1.1179 9 1 5 4 87.77 1.41 1.1121 11 1 1 4 87.87 1.08 1.1111 9 3 0 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.