Alumotantite Ercit T S, Hawthorne F C, Cerny P The Canadian Mineralogist 30 (1992) 653-662 The crystal structure of alumotantite: Its relation to the structures of simpsonite and the (Al,Ga)(Ta,Nb)O4 compounds _database_code_amcsd 0005280 CELL PARAMETERS: 4.4730 11.3080 4.7750 90.000 90.000 90.000 SPACE GROUP: Pbcn X-RAY WAVELENGTH: 1.541838 Cell Volume: 241.523 Density (g/cm3): 7.477 MAX. ABS. INTENSITY / VOLUME**2: 241.8928403 RIR: 10.534 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 15.67 17.93 5.6540 0 2 0 2 21.36 11.02 4.1594 1 1 0 4 24.40 43.48 3.6481 0 2 1 4 28.46 100.00 3.1364 1 1 1 8 31.03 47.46 2.8824 1 3 0 4 31.65 4.40 2.8270 0 4 0 2 36.95 20.97 2.4326 0 4 1 4 37.68 12.27 2.3875 0 0 2 2 40.33 7.40 2.2365 2 0 0 2 41.04 4.03 2.1994 0 2 2 4 42.29 3.32 2.1370 1 4 1 8 42.94 1.44 2.1062 1 0 2 4 43.52 3.27 2.0797 2 2 0 4 43.72 4.92 2.0706 1 1 2 8 44.91 5.61 2.0183 1 5 0 4 47.70 15.82 1.9067 2 2 1 8 48.29 5.42 1.8847 0 6 0 2 49.00 13.35 1.8590 1 5 1 8 49.58 27.24 1.8387 1 3 2 8 50.00 2.85 1.8240 0 4 2 4 52.15 2.58 1.7540 2 4 0 4 55.84 22.93 1.6464 2 4 1 8 56.37 13.83 1.6322 2 0 2 4 58.89 2.33 1.5682 2 2 2 8 60.02 5.16 1.5413 1 5 2 8 60.42 3.86 1.5321 0 2 3 4 60.98 2.33 1.5194 1 7 0 4 62.48 9.96 1.4865 1 1 3 8 62.82 4.69 1.4793 0 6 2 4 62.87 1.07 1.4782 3 1 0 4 64.34 9.74 1.4478 1 7 1 8 64.68 4.14 1.4412 2 6 0 4 66.10 2.21 1.4135 2 4 2 8 66.10 2.34 1.4135 0 8 0 2 66.18 8.18 1.4121 3 1 1 8 67.54 7.74 1.3869 0 4 3 4 67.56 5.60 1.3865 3 3 0 4 69.33 3.23 1.3554 0 8 1 4 73.94 2.31 1.2818 1 7 2 8 75.17 3.87 1.2640 2 2 3 8 76.17 3.24 1.2498 1 5 3 8 76.53 1.39 1.2448 3 5 0 4 77.34 4.99 1.2338 2 6 2 8 78.66 1.00 1.2163 0 8 2 4 79.18 2.20 1.2096 1 9 0 4 79.58 2.82 1.2046 3 5 1 8 80.03 6.12 1.1990 3 3 2 8 80.45 1.55 1.1938 0 0 4 2 81.69 3.53 1.1787 2 4 3 8 83.38 3.62 1.1591 2 8 1 8 87.16 2.06 1.1183 4 0 0 2 88.60 1.55 1.1038 3 5 2 8 88.69 5.04 1.1029 1 3 4 8 88.95 1.38 1.1004 0 10 1 4 89.09 3.82 1.0990 1 7 3 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.