Gearksutite Marchetti F, Perchiazzi N American Mineralogist 85 (2000) 231-235 The crystal structure of gearksutite, CaAlF4(OH).H2O _database_code_amcsd 0002346 CELL PARAMETERS: 4.9400 6.8100 6.9780 101.120 94.860 110.070 SPACE GROUP: P-1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 213.435 Density (g/cm3): 2.723 MAX. ABS. INTENSITY / VOLUME**2: 7.281673311 RIR: 0.871 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 13.11 18.24 6.7546 0 0 1 2 14.25 9.02 6.2140 0 1 0 2 16.94 19.83 5.2331 0 -1 1 2 19.39 7.30 4.5774 1 0 0 2 19.40 100.00 4.5754 -1 1 0 2 23.36 9.43 3.8075 1 -1 1 2 23.61 4.54 3.7690 -1 1 1 2 25.23 33.51 3.5303 1 0 1 2 26.39 46.60 3.3773 0 0 2 2 26.89 33.55 3.3155 0 -1 2 2 28.15 3.48 3.1705 1 1 0 2 28.15 23.59 3.1701 -1 -1 1 2 28.16 38.98 3.1685 -1 2 0 2 28.64 14.54 3.1173 0 -2 1 2 28.73 2.19 3.1070 0 2 0 2 32.72 2.22 2.7366 -1 2 1 2 32.79 1.67 2.7315 1 -1 2 2 33.06 8.66 2.7099 0 1 2 2 33.14 1.55 2.7031 -1 1 2 2 33.93 12.71 2.6418 1 1 1 2 36.30 3.58 2.4749 1 -2 2 2 36.51 1.19 2.4611 -2 1 0 2 37.87 3.11 2.3760 -2 1 1 2 39.37 25.57 2.2887 2 0 0 2 39.39 5.70 2.2877 -2 2 0 2 39.45 5.72 2.2843 -2 0 1 2 39.46 4.80 2.2836 -1 -2 1 2 40.01 13.46 2.2536 2 -1 1 2 40.05 3.38 2.2515 0 0 3 2 40.53 4.50 2.2258 1 -3 1 2 40.65 3.79 2.2193 1 2 0 2 40.67 3.77 2.2182 -1 3 0 2 41.51 3.58 2.1755 -1 2 2 2 41.71 14.12 2.1657 -1 0 3 2 41.83 21.34 2.1596 -2 2 1 2 42.51 5.11 2.1267 0 -3 1 2 42.83 25.15 2.1114 -1 -2 2 2 43.49 18.00 2.0809 1 1 2 2 43.50 8.70 2.0803 -1 -1 3 2 43.69 4.83 2.0717 -2 1 2 2 43.70 2.27 2.0714 0 -2 3 2 43.70 16.08 2.0713 0 3 0 2 43.79 1.82 2.0672 2 0 1 2 44.66 2.14 2.0290 1 -1 3 2 44.80 2.11 2.0232 1 -3 2 2 45.07 2.05 2.0115 -1 1 3 2 45.20 6.90 2.0062 -1 3 1 2 46.02 7.82 1.9723 0 1 3 2 46.10 2.26 1.9689 -2 -1 1 2 46.12 1.11 1.9682 1 2 1 2 47.09 5.73 1.9298 2 1 0 2 47.12 34.36 1.9286 -2 3 0 2 47.78 2.01 1.9038 2 -2 2 2 47.85 34.77 1.9008 1 0 3 2 47.97 1.17 1.8964 2 -3 1 2 48.29 5.83 1.8845 -2 2 2 2 48.96 1.84 1.8605 0 3 1 2 50.02 14.75 1.8236 -1 -2 3 2 52.11 9.58 1.7551 -2 0 3 2 52.46 15.31 1.7444 0 -3 3 2 52.62 1.53 1.7392 1 -3 3 2 52.67 3.12 1.7379 2 -3 2 2 52.69 11.04 1.7371 0 -1 4 2 52.82 2.80 1.7332 -1 2 3 2 53.93 10.14 1.7001 1 -4 1 2 54.86 2.58 1.6735 -1 -3 2 2 54.86 5.21 1.6735 1 2 2 2 54.97 10.15 1.6705 1 3 0 2 55.43 1.22 1.6578 0 -2 4 2 55.79 1.24 1.6477 -2 -1 3 2 55.82 4.68 1.6470 0 2 3 2 56.91 2.90 1.6180 -2 3 2 2 57.08 2.83 1.6135 2 -2 3 2 57.62 4.03 1.5998 -3 2 1 2 57.72 5.48 1.5972 2 -1 3 2 58.20 2.93 1.5853 2 2 0 2 58.20 6.80 1.5851 -2 -2 2 2 59.09 2.65 1.5635 3 -2 1 2 60.02 1.16 1.5413 -1 -2 4 2 60.04 2.96 1.5409 2 1 2 2 60.12 1.89 1.5391 -1 -3 3 2 60.31 1.81 1.5347 -3 1 2 2 60.73 1.74 1.5251 -3 3 0 2 61.57 1.43 1.5062 1 0 4 2 62.26 3.02 1.4912 3 -3 1 2 62.41 1.42 1.4879 2 0 3 2 62.44 3.67 1.4872 1 -4 3 2 63.10 1.44 1.4733 1 -3 4 2 63.33 1.84 1.4687 2 2 1 2 63.84 14.09 1.4580 -1 3 3 2 64.28 1.11 1.4490 -2 1 4 2 64.87 6.77 1.4374 3 -2 2 2 67.08 4.91 1.3952 -3 1 3 2 68.39 2.07 1.3717 -3 0 3 2 68.55 3.49 1.3689 -3 4 0 2 68.61 1.78 1.3678 -3 -1 2 2 68.65 1.84 1.3671 1 3 2 2 68.91 2.36 1.3627 0 -2 5 2 69.13 2.26 1.3588 -1 -4 2 2 69.58 2.05 1.3512 -3 2 3 2 70.59 2.05 1.3342 1 -5 2 2 71.44 1.50 1.3205 -2 -2 4 2 71.84 2.71 1.3141 2 3 0 2 71.96 1.37 1.3122 3 0 2 2 72.26 1.21 1.3074 -1 -2 5 2 72.44 1.13 1.3046 1 -2 5 2 72.78 1.14 1.2995 1 -1 5 2 72.79 1.04 1.2992 0 4 2 2 73.11 1.82 1.2944 2 -5 2 2 74.81 2.82 1.2692 3 -3 3 2 75.13 2.64 1.2645 1 -5 3 2 76.68 1.54 1.2428 0 5 0 2 76.73 1.97 1.2421 -3 4 2 2 77.07 4.43 1.2374 2 -4 4 2 77.58 1.10 1.2306 -4 2 0 2 77.73 1.33 1.2286 -4 2 1 2 77.81 1.50 1.2275 -2 1 5 2 78.06 1.11 1.2243 -3 -2 2 2 78.09 1.79 1.2238 -2 4 3 2 79.37 1.31 1.2073 -4 1 0 2 79.40 2.01 1.2069 1 2 4 2 79.85 1.57 1.2012 -1 -4 4 2 80.80 1.45 1.1894 3 1 2 2 80.86 1.19 1.1888 -1 2 5 2 81.13 2.72 1.1854 -4 1 2 2 82.11 1.17 1.1738 0 5 1 2 83.45 1.29 1.1583 -1 5 2 2 83.57 1.26 1.1569 0 -1 6 2 84.25 3.24 1.1493 0 -2 6 2 84.77 1.93 1.1437 3 2 1 2 84.98 1.49 1.1414 -2 -4 1 2 85.36 2.67 1.1372 -1 0 6 2 86.34 2.69 1.1268 4 -2 2 2 88.78 2.22 1.1020 -3 1 5 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.