K6 O26 Si4 Ta6 Choisnet J, Nguyen N, Groult D, Raveau B Materials Research Bulletin 11 (1976) 887-894 De nouveaux oxydes a reseau forme d'octaedres Nb O6 (Ta O6) et de groupes Si2 O7: Les phases A3 Ta6 Si4 O26 (A= Ba, Sr) et K6 M6 Si4 O26 (M= Nb, Ta) _cod_database_code 1001104 _database_code_amcsd 0014249 CELL PARAMETERS: 9.0660 9.0660 7.8730 90.000 90.000 120.000 SPACE GROUP: P-62m X-RAY WAVELENGTH: 1.541838 Cell Volume: 560.405 Density (g/cm3): 5.477 MAX. ABS. INTENSITY / VOLUME**2: 111.8274158 RIR: 6.648 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 11.27 46.83 7.8514 1 0 0 6 19.58 62.16 4.5330 1 1 0 3 22.59 43.72 3.9365 0 0 2 2 22.65 14.18 3.9257 2 0 0 6 25.31 25.55 3.5190 1 0 2 12 30.07 64.97 2.9722 1 1 2 6 30.11 100.00 2.9675 2 1 0 6 32.20 23.51 2.7797 2 0 2 12 34.26 6.82 2.6171 3 0 0 6 36.17 1.09 2.4835 3 0 1 12 37.97 43.16 2.3696 2 1 2 12 39.77 7.35 2.2665 2 2 0 3 41.47 2.26 2.1776 3 1 0 6 46.12 14.32 1.9683 0 0 4 2 46.22 5.29 1.9642 2 2 2 6 46.25 18.02 1.9628 4 0 0 6 47.63 3.68 1.9092 1 0 4 12 47.73 7.47 1.9055 3 1 2 12 50.56 9.69 1.8054 1 1 4 6 50.68 14.80 1.8012 3 2 0 6 51.97 2.14 1.7595 2 0 4 12 52.06 21.37 1.7566 4 0 2 12 53.48 8.53 1.7133 4 1 0 6 56.07 30.10 1.6403 2 1 4 12 56.16 18.81 1.6379 3 2 2 12 58.69 2.00 1.5730 3 0 4 12 58.78 11.13 1.5710 4 1 2 12 58.81 4.12 1.5703 5 0 0 6 61.35 6.30 1.5110 3 3 0 3 62.50 2.65 1.4861 2 2 4 6 62.61 2.93 1.4838 4 2 0 6 63.82 1.40 1.4585 5 0 2 12 66.25 5.37 1.4106 3 3 2 6 66.28 4.27 1.4102 5 1 0 6 67.38 9.89 1.3898 4 0 4 12 67.46 3.03 1.3884 4 2 2 12 70.92 8.30 1.3288 3 2 4 12 71.00 4.22 1.3275 5 1 2 12 73.12 1.41 1.2942 1 0 6 12 73.25 4.47 1.2923 4 1 4 12 75.42 3.31 1.2604 1 1 6 6 75.64 3.08 1.2572 5 2 0 6 76.55 1.02 1.2445 2 0 6 12 77.81 3.33 1.2275 5 0 4 12 79.94 4.42 1.2001 2 1 6 12 80.06 5.12 1.1985 3 3 4 6 80.14 5.03 1.1976 5 2 2 12 80.16 4.41 1.1973 6 1 0 6 81.18 2.06 1.1848 4 2 4 12 84.52 3.36 1.1463 5 1 4 12 84.60 7.32 1.1455 6 1 2 12 86.62 1.26 1.1239 3 1 6 12 89.93 3.60 1.0909 4 0 6 12 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.