Calciotantite Cooper M A, Hawthorne F C, Cerny P The Canadian Mineralogist 37 (1999) 1289-1294 Ta-Nb order in the crystal structure of niobium-rich calciotantite _database_code_amcsd 0005632 CELL PARAMETERS: 6.2261 6.2261 12.2800 90.000 90.000 120.000 SPACE GROUP: P6_322 X-RAY WAVELENGTH: 1.541838 Cell Volume: 412.250 Density (g/cm3): 6.734 MAX. ABS. INTENSITY / VOLUME**2: 149.6102615 RIR: 7.234 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 14.43 56.78 6.1400 0 0 2 2 16.44 37.31 5.3920 1 0 0 6 17.97 25.88 4.9370 1 0 1 12 21.94 6.80 4.0515 1 0 2 12 27.36 9.92 3.2603 1 0 3 12 29.09 49.51 3.0700 0 0 4 2 29.60 100.00 3.0176 1 1 1 12 32.24 81.04 2.7766 1 1 2 12 33.59 6.51 2.6679 1 0 4 12 34.05 2.98 2.6333 2 0 1 12 36.25 33.05 2.4779 1 1 3 12 36.40 7.80 2.4685 2 0 2 12 40.05 3.98 2.2515 2 0 3 12 44.26 5.70 2.0467 0 0 6 2 44.45 3.08 2.0380 2 1 0 12 45.10 11.94 2.0105 2 1 1 12 46.98 2.56 1.9342 2 1 2 12 47.13 24.41 1.9282 1 1 5 12 49.99 7.03 1.8244 2 1 3 12 50.25 1.19 1.8156 2 0 5 12 50.80 33.21 1.7973 3 0 0 6 53.09 8.08 1.7249 3 0 2 12 53.59 24.31 1.7102 1 1 6 12 54.01 3.01 1.6979 2 1 4 12 55.05 1.45 1.6682 1 0 7 12 56.45 4.40 1.6301 2 0 6 12 58.89 5.19 1.5683 2 1 5 12 59.61 33.62 1.5511 3 0 4 12 59.90 11.25 1.5442 2 2 1 12 60.29 6.48 1.5350 0 0 8 2 60.59 13.24 1.5283 1 1 7 12 61.45 11.18 1.5088 2 2 2 12 62.06 3.70 1.4955 3 1 0 12 62.57 5.14 1.4845 3 1 1 12 62.96 1.10 1.4763 1 0 8 12 63.24 1.16 1.4704 2 0 7 12 63.99 8.51 1.4549 2 2 3 12 64.53 1.05 1.4441 2 1 6 12 66.57 2.61 1.4047 3 1 3 12 69.62 3.75 1.3505 3 0 6 12 69.77 1.33 1.3480 4 0 0 6 69.98 3.43 1.3444 3 1 4 12 70.88 3.99 1.3295 2 1 7 12 71.80 6.21 1.3147 2 2 5 12 74.25 2.03 1.2773 3 1 5 12 76.18 4.36 1.2497 1 1 9 12 76.96 6.29 1.2389 2 2 6 12 77.31 1.32 1.2343 4 0 4 12 78.95 1.14 1.2126 3 2 2 12 82.33 2.17 1.1713 4 1 1 12 82.67 12.12 1.1672 3 0 8 12 82.93 4.19 1.1643 2 2 7 12 83.69 2.63 1.1556 4 1 2 12 84.89 5.06 1.1423 1 1 10 12 85.28 2.16 1.1381 3 1 7 12 85.96 2.11 1.1308 4 1 3 12 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.