Picromerite Kannan K K, Viswamitra M A Zeitschrift fur Kristallographie 122 (1965) 161-174 Crystal structure of magnesium potassium sulfate hexahydrate MgK2(SO4)2*6(H2O) Locality: synthetic _database_code_amcsd 0010626 CELL PARAMETERS: 9.0720 12.2120 6.1130 90.000 104.830 90.000 SPACE GROUP: P2_1/a X-RAY WAVELENGTH: 1.541838 Cell Volume: 654.683 Density (g/cm3): 2.043 MAX. ABS. INTENSITY / VOLUME**2: 4.981382672 RIR: 0.794 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 12.43 22.27 7.1233 1 1 0 4 14.51 1.57 6.1060 0 2 0 2 16.67 17.37 5.3193 0 1 1 4 17.70 4.73 5.0110 1 2 0 4 20.25 9.97 4.3849 2 0 0 2 20.92 8.22 4.2464 0 2 1 4 21.44 58.91 4.1444 1 1 1 4 21.51 10.91 4.1316 -1 2 1 4 21.53 9.55 4.1269 2 1 0 4 21.93 71.85 4.0525 -2 0 1 2 23.12 4.48 3.8463 -2 1 1 4 24.10 100.00 3.6923 1 3 0 4 24.92 9.35 3.5728 1 2 1 4 26.40 1.28 3.3765 -2 2 1 4 26.59 12.95 3.3523 0 3 1 4 27.06 10.03 3.2949 -1 3 1 4 28.28 37.79 3.1560 2 0 1 2 29.23 30.42 3.0556 2 1 1 4 29.25 39.35 3.0530 0 4 0 2 29.88 14.49 2.9899 1 3 1 4 29.95 3.17 2.9833 2 3 0 4 30.24 54.02 2.9553 -1 1 2 4 30.25 4.88 2.9547 0 0 2 2 31.02 1.94 2.8833 1 4 0 4 31.14 2.98 2.8720 -2 3 1 4 31.34 18.80 2.8545 -3 1 1 4 31.47 7.10 2.8430 3 1 0 4 31.90 22.17 2.8056 -2 0 2 2 31.92 17.39 2.8036 2 2 1 4 32.75 7.85 2.7344 -2 1 2 4 32.86 24.07 2.7256 -1 2 2 4 33.41 8.83 2.6817 -1 4 1 4 33.88 6.97 2.6459 -3 2 1 4 35.78 4.04 2.5094 1 4 1 4 35.84 1.68 2.5055 2 4 0 4 36.01 14.05 2.4942 2 3 1 4 36.86 6.84 2.4387 -1 3 2 4 36.86 5.08 2.4385 -2 4 1 4 37.53 2.25 2.3965 1 2 2 4 37.62 3.11 2.3912 0 3 2 4 37.78 42.41 2.3811 -3 3 1 4 39.94 7.73 2.2572 0 5 1 4 40.24 4.19 2.2410 -3 2 2 4 40.74 2.99 2.2148 -4 1 1 4 41.14 21.90 2.1943 2 4 1 4 41.17 5.80 2.1925 4 0 0 2 41.66 2.93 2.1679 2 1 2 4 41.86 2.61 2.1579 4 1 0 4 42.31 1.07 2.1361 1 5 1 4 42.58 12.12 2.1232 0 4 2 4 42.73 2.23 2.1161 -3 4 1 4 42.80 3.25 2.1130 -4 2 1 4 42.83 3.69 2.1114 3 4 0 4 43.25 5.20 2.0919 -2 5 1 4 43.68 1.38 2.0722 2 2 2 4 43.82 8.73 2.0658 -2 4 2 4 43.88 13.83 2.0635 4 2 0 4 43.95 1.98 2.0600 3 3 1 4 45.39 1.64 1.9981 -2 0 3 2 45.78 1.02 1.9819 1 4 2 4 46.06 1.14 1.9706 -4 3 1 4 46.08 10.68 1.9698 0 0 3 2 47.05 7.13 1.9315 2 5 1 4 47.26 1.17 1.9231 -4 2 2 4 47.73 1.51 1.9054 -1 5 2 4 48.11 2.57 1.8912 -3 4 2 4 48.35 7.64 1.8825 0 5 2 4 48.39 2.65 1.8812 3 4 1 4 48.48 2.34 1.8776 -3 5 1 4 48.57 4.61 1.8743 3 5 0 4 49.29 7.05 1.8488 -3 1 3 4 49.32 2.19 1.8477 1 6 1 4 50.08 5.90 1.8214 -1 3 3 4 50.16 8.46 1.8188 -2 6 1 4 50.91 6.21 1.7937 -2 3 3 4 50.93 1.94 1.7931 -5 1 1 4 51.30 7.14 1.7808 4 4 0 4 51.51 1.92 1.7743 3 2 2 4 51.54 4.07 1.7731 0 3 3 4 52.33 4.73 1.7483 1 2 3 4 52.72 7.67 1.7361 5 1 0 4 53.13 1.81 1.7238 4 3 1 4 53.56 1.05 1.7110 1 7 0 4 53.67 2.61 1.7077 3 5 1 4 54.20 2.85 1.6923 -1 6 2 4 54.37 3.65 1.6875 3 3 2 4 54.43 1.39 1.6858 5 2 0 4 54.92 1.85 1.6719 -2 4 3 4 55.16 3.86 1.6650 1 3 3 4 55.52 1.38 1.6552 0 4 3 4 56.26 1.75 1.6351 -4 2 3 4 56.40 2.43 1.6315 4 5 0 4 56.75 3.82 1.6220 1 7 1 4 57.19 4.54 1.6108 5 3 0 4 57.51 2.00 1.6024 -2 7 1 4 58.21 1.37 1.5849 3 4 2 4 58.46 3.67 1.5788 -5 3 2 4 58.97 1.57 1.5664 -4 3 3 4 59.02 2.05 1.5650 4 1 2 4 60.37 1.44 1.5333 0 5 3 4 60.72 1.12 1.5252 5 2 1 4 60.82 2.63 1.5229 -2 0 4 2 61.23 3.46 1.5138 -1 7 2 4 61.35 1.32 1.5112 -2 1 4 4 61.40 2.65 1.5100 -4 6 1 4 61.61 1.42 1.5053 -5 1 3 4 61.75 1.39 1.5023 0 7 2 4 61.87 2.65 1.4998 -3 7 1 4 62.09 1.81 1.4949 2 6 2 4 62.24 1.99 1.4917 4 6 0 4 62.63 4.20 1.4833 -4 4 3 4 63.12 1.74 1.4730 -1 8 1 4 63.20 1.46 1.4713 4 3 2 4 63.31 1.27 1.4690 -3 1 4 4 63.36 1.11 1.4679 -6 0 2 2 63.84 1.32 1.4581 3 1 3 4 64.25 1.22 1.4496 1 7 2 4 64.83 1.26 1.4382 -3 2 4 4 64.94 1.64 1.4360 -4 6 2 4 65.47 2.37 1.4256 -1 3 4 4 65.69 1.51 1.4214 -5 3 3 4 66.00 1.73 1.4155 0 6 3 4 66.35 3.18 1.4088 3 7 1 4 67.33 2.76 1.3907 -3 3 4 4 67.87 1.03 1.3809 -6 3 2 4 68.25 1.05 1.3742 2 8 1 4 68.45 2.75 1.3707 3 6 2 4 69.14 2.62 1.3586 1 6 3 4 70.18 1.76 1.3411 6 0 1 2 70.66 2.45 1.3331 6 1 1 4 71.13 2.37 1.3254 4 5 2 4 71.29 1.21 1.3229 -6 4 2 4 71.34 1.76 1.3221 -4 7 2 4 71.54 1.95 1.3189 -1 9 1 4 72.52 2.20 1.3034 -4 6 3 4 72.79 1.64 1.2993 -5 1 4 4 73.04 1.45 1.2954 2 1 4 4 73.25 2.07 1.2923 -2 5 4 4 73.57 1.38 1.2874 -7 1 1 4 73.65 1.23 1.2862 3 8 1 4 74.35 1.67 1.2758 -3 7 3 4 74.61 1.13 1.2721 1 4 4 4 75.19 1.95 1.2636 -4 8 1 4 75.38 1.40 1.2610 1 7 3 4 76.17 1.26 1.2498 -7 2 2 4 77.11 1.38 1.2369 5 7 0 4 77.34 1.06 1.2338 -7 3 1 4 78.43 1.38 1.2194 -2 6 4 4 80.27 1.34 1.1959 0 10 1 4 80.71 1.03 1.1906 -6 6 2 4 80.77 1.69 1.1898 -1 2 5 4 81.89 1.76 1.1764 0 1 5 4 81.96 1.48 1.1756 6 5 1 4 84.24 1.58 1.1495 2 5 4 4 84.30 2.44 1.1488 5 2 3 4 84.57 2.08 1.1458 7 2 1 4 84.67 1.71 1.1447 -5 7 3 4 86.95 1.69 1.1205 -6 4 4 4 87.02 1.37 1.1197 -2 10 2 4 89.28 1.12 1.0971 4 8 2 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.