Perryite Marsh R E Acta Crystallographica A50 (1994) 450-455 The centrosymmetric - noncentrosymmetric ambiguity: some more examples Locality: synthetic _database_code_amcsd 0009330 CELL PARAMETERS: 6.6400 6.6400 37.9819 90.000 90.000 120.000 SPACE GROUP: R-3c X-RAY WAVELENGTH: 1.541838 Cell Volume: 1450.252 Density (g/cm3): 7.624 MAX. ABS. INTENSITY / VOLUME**2: 88.98358596 RIR: 3.800 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 27.78 1.03 3.2114 1 1 3 12 28.19 2.48 3.1652 0 0 12 2 30.40 7.75 2.9402 1 1 6 12 32.54 5.50 2.7518 0 2 4 6 34.37 11.88 2.6093 1 1 9 12 36.54 7.60 2.4594 2 0 8 6 36.62 1.32 2.4536 0 1 14 6 39.30 10.38 2.2924 0 2 10 6 41.62 24.02 2.1699 2 1 1 12 42.68 12.83 2.1187 2 1 4 12 42.86 8.20 2.1101 0 0 18 2 43.30 10.87 2.0896 1 2 5 12 44.93 11.48 2.0176 2 1 7 12 45.03 100.00 2.0134 1 1 15 12 45.92 10.54 1.9762 1 2 8 12 45.99 20.68 1.9732 2 0 14 6 47.43 81.26 1.9168 3 0 0 6 48.24 5.09 1.8864 2 1 10 12 49.56 5.32 1.8394 1 2 11 12 49.81 3.08 1.8306 0 2 16 6 51.30 13.89 1.7809 1 1 18 12 54.06 15.55 1.6962 1 2 14 12 55.58 1.37 1.6535 1 0 22 6 55.86 3.61 1.6459 2 2 3 12 57.49 1.21 1.6030 2 1 16 12 57.87 1.69 1.5935 1 3 1 12 58.30 1.87 1.5826 0 0 24 2 59.20 1.28 1.5608 3 1 5 12 59.87 2.79 1.5448 2 2 9 12 63.20 1.38 1.4713 2 1 19 12 64.34 1.04 1.4479 3 1 11 12 65.82 1.17 1.4188 3 0 18 6 65.82 1.25 1.4188 0 3 18 6 67.46 7.65 1.3883 2 2 15 12 69.97 1.78 1.3445 4 0 10 6 71.57 2.92 1.3184 3 2 1 12 71.79 1.06 1.3149 1 2 23 12 72.44 4.01 1.3047 2 2 18 12 72.76 1.17 1.2998 2 3 5 12 73.94 2.17 1.2819 3 2 7 12 74.67 1.15 1.2711 2 3 8 12 74.73 1.05 1.2703 0 4 14 6 75.02 5.61 1.2661 0 0 30 2 75.81 3.54 1.2548 4 1 0 12 76.25 1.12 1.2487 4 1 3 12 76.43 3.20 1.2462 3 2 10 12 76.50 3.29 1.2452 2 1 25 12 77.45 1.54 1.2324 2 3 11 12 77.56 1.11 1.2309 1 4 6 12 77.56 1.17 1.2309 4 1 6 12 77.65 1.58 1.2297 4 0 16 6 78.35 1.45 1.2204 3 0 24 6 78.35 1.52 1.2204 0 3 24 6 78.97 1.77 1.2124 1 2 26 12 81.05 7.91 1.1864 2 3 14 12 81.34 2.72 1.1830 1 1 30 12 82.73 1.50 1.1665 1 4 12 12 82.73 1.35 1.1665 4 1 12 12 83.09 1.07 1.1624 0 1 32 6 83.91 1.75 1.1531 3 2 16 12 84.94 1.01 1.1417 0 5 4 6 86.57 2.81 1.1244 4 1 15 12 86.57 2.76 1.1244 1 4 15 12 86.82 3.35 1.1218 1 2 29 12 88.31 1.42 1.1067 3 3 0 6 88.51 1.91 1.1047 4 0 22 6 89.28 2.01 1.0971 2 0 32 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.