Pararobertsite Kampf A R American Mineralogist 85 (2000) 1302-1306 The crystal structure of pararobertsite and its relationship to mitridatite Locality: Tip Top pegmatite, Custer County, South Dakota, USA _database_code_amcsd 0002513 CELL PARAMETERS: 8.8140 13.2330 11.0560 90.000 101.184 90.000 SPACE GROUP: P2_1/c X-RAY WAVELENGTH: 1.541838 Cell Volume: 1265.035 Density (g/cm3): 3.234 MAX. ABS. INTENSITY / VOLUME**2: 21.93547402 RIR: 2.209 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 10.23 100.00 8.6466 1 0 0 2 12.23 1.38 7.2384 1 1 0 4 15.69 24.19 5.6484 0 2 1 4 16.35 15.13 5.4230 0 0 2 2 17.67 1.08 5.0180 0 1 2 4 17.87 1.57 4.9640 -1 2 1 4 19.62 1.35 4.5242 1 2 1 4 20.54 8.83 4.3233 2 0 0 2 21.62 2.08 4.1095 2 1 0 4 23.39 1.76 3.8032 -1 3 1 4 23.70 3.86 3.7540 -2 0 2 2 24.65 2.00 3.6115 -2 1 2 4 26.95 10.30 3.3082 0 4 0 2 28.13 7.96 3.1726 0 2 3 4 28.27 1.55 3.1573 -1 2 3 4 28.90 2.86 3.0898 1 4 0 4 28.95 2.33 3.0842 -2 3 1 4 29.35 2.63 3.0429 1 1 3 4 29.75 2.04 3.0028 -2 1 3 4 31.03 19.03 2.8822 3 0 0 2 31.29 5.93 2.8588 -2 3 2 4 31.65 14.25 2.8269 1 2 3 4 31.68 8.19 2.8242 0 4 2 4 31.77 1.89 2.8162 3 1 0 4 32.03 8.85 2.7947 -2 2 3 4 32.13 1.47 2.7856 -1 3 3 4 32.22 4.33 2.7782 -3 0 2 2 32.34 32.85 2.7684 -1 4 2 4 32.64 8.22 2.7437 -1 0 4 2 33.04 13.07 2.7115 0 0 4 2 34.13 7.45 2.6273 2 4 0 4 34.39 23.87 2.6080 1 4 2 4 35.18 1.85 2.5508 1 3 3 4 35.50 5.74 2.5284 -2 0 4 2 36.19 4.26 2.4820 -2 4 2 4 36.40 6.02 2.4683 3 2 1 4 41.47 2.87 2.1774 -1 1 5 4 41.56 2.20 2.1731 3 4 0 4 41.79 10.24 2.1617 4 0 0 2 41.80 2.97 2.1613 0 6 1 4 41.88 2.79 2.1571 -4 0 2 2 42.32 2.37 2.1355 0 5 3 4 42.37 1.22 2.1334 4 1 0 4 42.66 1.12 2.1195 2 0 4 2 43.14 3.28 2.0971 0 4 4 4 43.20 2.07 2.0940 -1 2 5 4 43.55 2.12 2.0780 1 6 1 4 43.93 2.45 2.0613 0 2 5 4 46.47 2.88 1.9541 4 2 1 4 47.28 6.21 1.9225 3 4 2 4 48.34 1.38 1.8828 0 6 3 4 48.50 3.66 1.8770 -4 0 4 2 48.91 1.39 1.8624 0 7 1 4 50.43 1.15 1.8096 4 4 0 4 50.65 1.52 1.8022 1 6 3 4 50.91 3.32 1.7938 -2 6 3 4 51.11 1.12 1.7872 2 1 5 4 51.89 1.11 1.7621 -3 6 1 4 53.78 1.29 1.7044 1 0 6 2 53.85 2.37 1.7024 -5 2 1 4 54.01 1.62 1.6979 3 6 1 4 54.10 2.07 1.6952 -1 5 5 4 54.26 1.08 1.6905 1 1 6 4 55.35 2.00 1.6598 4 2 3 4 55.56 7.47 1.6541 0 8 0 2 56.07 1.17 1.6403 -5 2 3 4 56.13 3.44 1.6385 4 4 2 4 56.62 1.41 1.6256 -5 3 2 4 57.23 9.62 1.6097 -1 4 6 4 58.15 2.39 1.5863 0 4 6 4 58.46 1.65 1.5787 -2 4 6 4 59.65 2.01 1.5501 4 0 4 2 59.77 1.07 1.5471 3 2 5 4 59.82 5.03 1.5460 -5 4 2 4 60.40 2.07 1.5326 5 4 0 4 61.47 1.03 1.5085 -3 7 3 4 61.77 1.70 1.5019 -3 4 6 4 63.79 1.07 1.4590 -5 5 2 4 65.01 2.50 1.4346 3 8 0 4 65.75 1.75 1.4202 5 2 3 4 65.94 1.19 1.4166 -1 8 4 4 66.11 1.45 1.4135 2 4 6 4 66.15 1.21 1.4126 5 4 2 4 66.18 1.10 1.4121 0 8 4 4 66.97 1.51 1.3974 -4 4 6 4 67.69 1.43 1.3842 -2 8 4 4 68.84 1.09 1.3638 6 2 1 4 70.06 1.23 1.3430 -5 6 3 4 72.78 1.90 1.2994 3 4 6 4 73.88 1.08 1.2828 -5 4 6 4 74.70 1.01 1.2707 4 0 6 2 81.74 1.21 1.1782 6 6 1 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.