Chopinite Berthet G, Joubert J, Bertaut E Zeitschrift fur Kristallographie 136 (1972) 98-105 Vacancies ordering in new metastable orthophosphates (Co3)P2O8 and (Mg3)P2O8 with olivine-related structure _cod_database_code 1008830 _database_code_amcsd 0016699 CELL PARAMETERS: 5.9110 10.2140 4.7340 90.000 90.000 90.990 SPACE GROUP: P2_1/b X-RAY WAVELENGTH: 1.541838 Cell Volume: 285.772 Density (g/cm3): 3.054 MAX. ABS. INTENSITY / VOLUME**2: 8.234725606 RIR: 0.878 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 14.99 18.17 5.9101 1 0 0 2 17.37 1.36 5.1062 0 2 0 2 20.68 54.21 4.2950 0 1 1 4 22.82 12.77 3.8973 -1 2 0 2 23.22 100.00 3.8312 1 2 0 2 24.09 26.68 3.6948 1 0 1 4 25.55 6.07 3.4865 1 -1 1 4 25.66 14.78 3.4716 0 2 1 4 25.73 21.36 3.4625 1 1 1 4 29.69 4.17 3.0089 -1 2 1 4 30.24 42.38 2.9551 2 0 0 2 32.39 47.41 2.7638 0 3 1 4 35.67 49.23 2.5172 -1 3 1 4 36.07 23.96 2.4902 1 3 1 4 36.79 15.74 2.4428 2 -1 1 4 37.05 43.86 2.4263 2 1 1 4 38.15 4.00 2.3587 -1 4 0 2 38.66 4.36 2.3292 1 4 0 2 39.06 19.63 2.3059 0 1 2 4 39.83 8.59 2.2634 2 -2 1 4 40.13 26.22 2.2471 0 4 1 4 40.31 7.74 2.2373 2 2 1 4 42.00 4.31 2.1510 1 -1 2 4 42.08 3.53 2.1475 0 2 2 4 42.12 17.38 2.1453 1 1 2 4 43.29 1.33 2.0899 1 4 1 4 44.80 1.81 2.0231 -1 2 2 4 47.46 1.76 1.9156 2 4 0 2 48.54 1.20 1.8754 0 5 1 4 49.29 2.33 1.8487 -3 2 0 2 49.33 1.98 1.8474 2 0 2 4 49.90 1.48 1.8274 3 2 0 2 50.08 1.03 1.8214 2 -1 2 4 50.16 1.31 1.8188 3 0 1 4 50.85 5.18 1.7956 3 -1 1 4 51.35 11.27 1.7794 1 5 1 4 51.46 1.39 1.7757 2 4 1 4 52.49 25.18 1.7432 2 -2 2 4 52.74 4.91 1.7358 0 4 2 4 52.88 8.63 1.7312 2 2 2 4 53.19 1.33 1.7221 3 -2 1 4 53.77 3.81 1.7048 3 2 1 4 53.86 1.18 1.7021 0 6 0 2 55.34 13.91 1.6602 1 4 2 4 55.96 9.94 1.6432 -1 6 0 2 56.52 3.77 1.6281 1 6 0 2 56.97 1.59 1.6164 2 3 2 4 57.03 6.23 1.6150 3 -3 1 4 57.54 2.09 1.6017 0 6 1 4 57.86 12.26 1.5937 3 3 1 4 58.70 4.99 1.5729 -3 4 0 2 59.25 2.09 1.5595 0 1 3 4 59.79 4.10 1.5468 3 4 0 2 60.10 1.96 1.5396 1 6 1 4 60.75 1.59 1.5246 1 0 3 4 61.51 5.14 1.5076 0 2 3 4 61.54 3.74 1.5069 1 1 3 4 61.82 1.79 1.5008 -1 5 2 4 61.82 1.64 1.5007 3 -1 2 4 62.26 2.16 1.4912 1 5 2 4 62.50 12.41 1.4861 -2 6 0 2 62.90 13.34 1.4775 4 0 0 2 63.55 5.99 1.4640 2 6 0 2 63.79 3.06 1.4591 1 2 3 4 63.89 4.18 1.4570 3 -2 2 4 65.88 1.63 1.4178 -2 6 1 4 67.14 4.94 1.3942 0 7 1 4 67.15 1.25 1.3941 4 1 1 4 67.16 6.54 1.3937 -1 3 3 4 68.53 4.21 1.3692 -3 5 1 4 69.53 1.77 1.3520 1 7 1 4 69.66 2.11 1.3498 -1 6 2 4 69.90 4.60 1.3457 2 -2 3 4 70.10 1.82 1.3423 0 4 3 4 70.23 7.54 1.3402 2 2 3 4 72.00 1.84 1.3115 -1 4 3 4 72.06 2.17 1.3107 4 -3 1 4 72.33 4.06 1.3064 1 4 3 4 72.80 1.24 1.2991 -3 6 0 2 73.04 1.81 1.2955 4 3 1 4 74.26 3.89 1.2771 3 6 0 2 75.91 1.76 1.2534 4 0 2 4 75.99 1.75 1.2523 -1 8 0 2 76.64 1.28 1.2433 4 -4 1 4 77.50 1.51 1.2316 3 0 3 4 78.06 1.90 1.2242 -3 5 2 4 78.54 1.58 1.2180 2 4 3 4 79.25 2.36 1.2087 3 5 2 4 81.29 1.03 1.1835 0 0 4 2 83.26 1.30 1.1605 1 0 4 4 83.66 1.13 1.1560 -5 2 0 2 83.82 2.03 1.1542 3 3 3 4 84.10 2.75 1.1510 -2 7 2 4 84.44 1.04 1.1472 5 2 0 2 84.46 1.32 1.1470 -3 7 1 4 84.48 1.07 1.1468 5 0 1 4 84.56 1.24 1.1459 2 5 3 4 84.70 1.31 1.1444 -2 8 1 4 85.20 1.24 1.1390 2 7 2 4 85.74 1.42 1.1331 1 6 3 4 86.62 1.59 1.1239 3 6 2 4 86.65 1.54 1.1236 0 8 2 4 87.58 3.30 1.1140 -3 4 3 4 88.34 1.44 1.1064 4 6 0 2 88.52 1.99 1.1046 3 4 3 4 88.64 1.13 1.1035 0 9 1 4 89.70 2.03 1.0931 2 -1 4 4 89.78 3.30 1.0924 5 -3 1 4 89.86 1.65 1.0916 2 1 4 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.