Syngenite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R061002 Corazza E, Sabelli C Zeitschrift fur Kristallographie 124 (1967) 398-408 The crystal structure of syngenite, K2Ca(SO4)2*(H2O) Locality: Kalasz, Galicia CELL PARAMETERS: 9.770000 7.150000 6.250000 90.00000 104.0000 90.00000 SPACE GROUP: P2_1/m X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 9.34 69.91 9.4840 1 0 0 14.62 3.91 6.0634 0 0 1 15.54 64.47 5.7080 1 1 0 18.72 14.44 4.7420 2 0 0 19.21 50.04 4.6237 0 1 1 19.76 36.40 4.4958 -1 1 1 22.51 15.95 3.9514 2 1 0 22.91 36.02 3.8834 1 1 1 24.28 1.88 3.6659 -2 1 1 24.92 33.91 3.5737 0 2 0 26.52 1.46 3.3613 2 0 1 26.66 45.04 3.3441 1 2 0 28.23 100.00 3.1613 3 0 0 28.66 21.23 3.1146 -1 0 2 29.36 5.70 3.0418 2 1 1 29.38 10.38 3.0401 -1 2 1 29.46 40.06 3.0317 0 0 2 30.92 1.48 2.8916 -2 0 2 30.93 32.58 2.8912 3 1 0 31.33 65.98 2.8553 -1 1 2 31.34 67.72 2.8540 2 2 0 31.64 68.95 2.8280 1 2 1 32.07 25.69 2.7910 0 1 2 32.67 73.90 2.7406 -2 2 1 33.13 18.35 2.7041 1 0 2 33.43 9.74 2.6805 -2 1 2 35.73 52.19 2.5130 -3 0 2 36.70 11.29 2.4485 2 2 1 37.30 9.77 2.4106 3 1 1 37.95 7.37 2.3707 -3 1 2 37.94 2.02 2.3710 4 0 0 37.99 7.92 2.3678 3 2 0 38.21 30.24 2.3550 -3 2 1 38.33 8.97 2.3480 -1 2 2 38.93 1.80 2.3128 2 0 2 38.95 20.24 2.3119 0 2 2 39.37 7.83 2.2882 -4 1 1 40.06 3.81 2.2504 4 1 0 40.68 3.51 2.2174 0 3 1 40.96 2.07 2.2028 -1 3 1 41.01 3.91 2.2005 2 1 2 42.32 2.97 2.1352 -4 0 2 42.45 3.49 2.1289 2 3 0 43.45 7.58 2.0821 -1 0 3 43.48 10.98 2.0806 -2 3 1 44.04 1.21 2.0556 -3 2 2 44.25 6.80 2.0465 -2 0 3 44.24 7.71 2.0466 4 0 1 44.26 11.99 2.0459 -4 1 2 45.30 11.51 2.0011 -4 2 1 45.35 1.64 1.9990 -1 1 3 45.92 2.35 1.9757 4 2 0 46.12 3.09 1.9674 -2 1 3 46.22 34.52 1.9636 3 0 2 46.57 14.02 1.9497 -5 0 1 46.72 6.43 1.9437 2 3 1 46.77 21.89 1.9417 2 2 2 47.13 1.73 1.9277 -3 0 3 47.79 12.94 1.9027 3 3 0 48.04 4.94 1.8934 3 1 2 48.07 13.44 1.8923 -1 3 2 48.24 2.16 1.8859 1 0 3 48.59 11.32 1.8732 0 3 2 48.92 1.86 1.8612 -3 1 3 49.56 7.59 1.8387 -2 3 2 49.71 2.94 1.8333 5 1 0 50.00 1.82 1.8235 1 1 3 50.16 1.10 1.8180 -5 0 2 51.07 4.95 1.7876 1 3 2 51.10 27.12 1.7868 0 4 0 51.44 1.90 1.7759 -2 2 3 51.43 6.43 1.7760 4 2 1 51.88 2.75 1.7619 -5 1 2 51.96 4.99 1.7593 0 2 3 52.44 4.48 1.7442 3 3 1 52.94 11.15 1.7289 -3 3 2 53.21 4.56 1.7209 3 2 2 53.44 1.45 1.7140 0 4 1 53.51 4.18 1.7118 -4 1 3 53.52 1.10 1.7116 -5 2 1 53.67 2.39 1.7072 -1 4 1 54.03 5.47 1.6966 -3 2 3 54.58 3.18 1.6807 4 0 2 54.77 6.15 1.6754 5 2 0 54.89 1.48 1.6721 2 4 0 55.03 1.39 1.6682 2 1 3 55.04 5.29 1.6679 1 2 3 55.07 1.10 1.6668 1 4 1 55.34 6.67 1.6595 2 3 2 57.98 2.82 1.5901 -4 3 2 58.35 5.04 1.5807 6 0 0 58.47 1.01 1.5778 2 4 1 58.97 1.73 1.5655 -6 0 2 59.34 6.09 1.5567 -1 0 4 59.39 7.50 1.5556 3 4 0 59.54 1.06 1.5519 -3 4 1 59.63 4.18 1.5499 -1 4 2 59.90 1.49 1.5434 6 1 0 60.08 1.12 1.5394 0 4 2 60.35 4.06 1.5330 5 2 1 60.52 6.39 1.5293 -6 1 2 61.13 2.18 1.5152 3 3 2 61.42 1.43 1.5089 -5 3 1 62.54 1.73 1.4844 -3 1 4 62.62 2.35 1.4829 0 1 4 62.65 2.49 1.4821 -6 2 1 63.45 1.68 1.4653 3 4 1 63.89 3.24 1.4562 -3 4 2 64.14 12.48 1.4513 -5 2 3 64.41 5.50 1.4458 -4 0 4 65.01 1.53 1.4340 -6 2 2 65.33 4.25 1.4276 -2 2 4 66.96 2.51 1.3968 -3 2 4 67.00 1.06 1.3961 -7 0 1 67.26 1.48 1.3913 0 5 1 68.43 5.43 1.3703 -4 4 2 68.44 1.38 1.3702 -7 1 1 68.66 1.19 1.3663 -7 0 2 69.48 4.22 1.3521 2 0 4 69.64 6.35 1.3494 5 2 2 69.84 1.88 1.3460 -2 4 3 69.84 1.14 1.3460 4 4 1 70.15 2.22 1.3408 6 2 1 70.19 1.00 1.3403 -4 2 4 70.28 1.07 1.3387 0 4 3 70.30 4.25 1.3383 1 2 4 70.74 1.93 1.3312 7 1 0 70.90 3.46 1.3285 2 1 4 71.28 3.65 1.3224 -6 2 3 71.33 10.90 1.3216 3 4 2 71.59 3.20 1.3173 -5 4 1 72.16 6.68 1.3083 -6 3 2 72.54 1.47 1.3025 3 5 0 72.75 3.34 1.2992 -1 5 2 73.16 1.44 1.2930 0 5 2 73.43 6.08 1.2888 4 2 3 74.03 3.93 1.2799 -3 3 4 74.00 2.70 1.2803 6 0 2 74.09 2.43 1.2789 0 3 4 74.92 3.59 1.2668 -5 2 4 76.60 3.83 1.2431 5 3 2 77.24 1.76 1.2345 1 3 4 77.56 1.06 1.2302 -4 5 1 78.10 1.37 1.2230 -1 1 5 80.60 2.49 1.1912 0 6 0 80.88 1.43 1.1878 -4 5 2 80.91 4.36 1.1875 7 2 1 81.08 2.79 1.1853 -6 2 4 81.20 3.12 1.1839 6 4 0 81.37 2.52 1.1819 1 6 0 81.56 1.88 1.1797 -2 2 5 81.72 1.25 1.1777 7 3 0 81.87 5.05 1.1759 2 3 4 82.06 3.20 1.1737 -1 4 4 82.42 1.04 1.1695 8 1 0 82.48 1.40 1.1687 -3 2 5 82.60 1.66 1.1674 3 4 3 82.66 1.46 1.1667 -1 6 1 83.32 1.93 1.1591 -7 0 4 83.65 2.48 1.1553 2 6 0 83.69 2.64 1.1549 -8 2 1 83.81 2.83 1.1536 1 6 1 84.28 1.40 1.1484 0 2 5 84.36 2.76 1.1474 -2 6 1 84.93 1.63 1.1412 -4 2 5 86.43 1.35 1.1252 8 2 0 86.52 2.32 1.1243 6 4 1 86.55 6.00 1.1239 -4 4 4 86.66 1.06 1.1228 2 6 1 87.71 1.09 1.1120 2 0 5 87.77 1.54 1.1114 -6 3 4 87.87 1.06 1.1104 -4 5 3 87.97 1.11 1.1094 3 3 4 88.66 1.02 1.1026 -7 2 4 88.90 1.10 1.1002 4 2 4 88.90 1.10 1.1002 4 2 4 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.