Polyhalite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R070209 Bindi L Acta Crystallographica E61 (2005) i135-i136 Reinvestigation of the crystal structure of polyhalite, K2Ca2Mg(SO4)4*2H2O CELL PARAMETERS: 6.957658 6.957757 8.889428 104.0773 101.2093 113.9140 SPACE GROUP: P-1 X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 14.76 23.19 6.0031 1 0 0 14.92 8.67 5.9362 0 1 0 14.98 5.50 5.9121 0 -1 1 15.20 3.48 5.8294 -1 1 0 18.43 7.80 4.8121 1 -1 1 21.46 4.91 4.1400 0 1 1 21.59 2.75 4.1156 0 -1 2 21.96 4.17 4.0459 -1 0 2 23.45 1.16 3.7923 -1 -1 1 25.63 8.84 3.4747 1 1 0 26.12 14.50 3.4105 -2 1 0 26.24 2.39 3.3951 1 -2 1 26.19 3.45 3.4014 -1 -1 2 26.30 2.00 3.3876 1 -1 2 26.56 3.41 3.3542 -2 1 1 28.05 100.00 3.1802 0 -2 1 28.07 69.88 3.1776 -2 0 1 29.75 1.27 3.0016 2 0 0 30.06 12.56 2.9714 2 -1 1 30.32 32.74 2.9463 1 0 2 30.66 59.42 2.9147 -2 2 0 30.77 40.32 2.9048 0 1 2 30.85 5.29 2.8968 -1 2 1 30.92 39.57 2.8908 0 -1 3 31.23 9.10 2.8630 -2 1 2 31.37 35.64 2.8506 -1 0 3 31.79 1.32 2.8136 1 1 1 32.28 2.64 2.7722 2 -2 1 32.95 1.20 2.7167 -2 2 1 35.10 5.88 2.5553 2 0 1 35.71 1.93 2.5130 0 2 1 35.93 5.20 2.4984 0 -2 3 36.05 1.06 2.4899 1 -1 3 36.56 6.06 2.4564 -2 0 3 36.88 3.63 2.4359 -1 -2 2 36.97 1.28 2.4302 -2 -1 2 37.13 4.41 2.4201 2 -1 2 37.35 6.35 2.4060 2 -2 2 37.62 7.38 2.3896 1 -2 3 38.24 12.32 2.3526 -1 2 2 38.54 5.29 2.3346 -2 2 2 38.74 8.47 2.3230 -2 1 3 40.10 6.85 2.2472 -3 1 0 40.31 1.14 2.2360 1 1 2 40.45 2.90 2.2288 1 -3 2 40.39 1.15 2.2318 -1 -2 3 40.63 6.73 2.2192 -1 3 0 40.70 2.05 2.2154 2 -3 1 41.04 3.51 2.1980 -3 1 2 41.24 4.81 2.1881 0 1 3 41.40 2.40 2.1796 0 -1 4 41.44 6.21 2.1779 -1 -1 4 41.89 2.48 2.1555 -1 0 4 44.24 1.44 2.0462 -2 3 1 44.51 3.89 2.0345 0 0 4 45.29 1.01 2.0010 3 0 0 45.30 6.56 2.0008 2 1 1 45.60 7.59 1.9880 1 2 1 45.83 2.96 1.9787 0 3 0 45.96 2.00 1.9735 -3 1 3 46.03 1.26 1.9707 0 -3 3 46.12 4.00 1.9671 2 -1 3 46.57 8.74 1.9492 -1 -2 4 46.63 3.42 1.9467 -3 0 3 46.89 4.56 1.9365 -2 -1 4 47.75 3.77 1.9037 3 -3 1 48.01 3.02 1.8938 -2 1 4 47.95 11.92 1.8962 -2 -2 2 48.59 9.43 1.8727 3 -2 2 48.98 5.84 1.8587 2 -3 3 48.99 1.19 1.8582 -2 -2 1 50.07 5.79 1.8206 -2 3 2 50.49 5.70 1.8066 -3 2 3 50.40 14.05 1.8095 3 0 1 51.25 9.25 1.7814 0 3 1 51.55 11.24 1.7717 0 -3 4 51.97 1.04 1.7583 1 0 4 52.45 5.40 1.7434 -3 0 4 52.65 4.03 1.7373 2 2 0 52.89 3.10 1.7300 2 -4 1 52.93 5.97 1.7287 -4 2 1 53.11 1.05 1.7232 -3 1 4 53.98 1.57 1.6976 2 -4 2 53.87 5.56 1.7007 -2 -2 4 54.35 1.19 1.6868 -2 4 0 54.50 1.11 1.6826 -2 0 5 55.89 1.80 1.6440 -2 2 4 56.51 1.38 1.6274 2 -3 4 56.63 1.21 1.6244 -4 3 0 56.98 1.25 1.6150 -3 4 0 57.06 1.22 1.6131 1 -2 5 57.41 1.48 1.6040 3 -3 3 57.90 1.69 1.5916 -2 3 3 57.96 3.58 1.5901 0 -4 2 58.01 2.76 1.5888 -4 0 2 59.34 1.98 1.5564 -3 3 3 59.40 2.97 1.5549 -1 1 5 59.90 2.84 1.5432 4 -1 1 60.91 2.40 1.5200 1 -4 4 61.16 3.88 1.5144 -1 4 1 61.31 2.04 1.5110 1 1 4 62.25 3.50 1.4904 -4 1 4 62.70 3.36 1.4808 -1 -1 6 62.88 1.93 1.4770 4 -3 2 63.20 1.88 1.4702 3 -4 3 63.83 9.02 1.4574 -4 4 0 64.64 1.67 1.4410 -3 4 2 65.00 1.88 1.4339 -4 3 3 67.75 3.20 1.3822 3 2 0 67.98 1.67 1.3780 2 3 0 69.14 4.80 1.3577 3 -1 4 69.38 1.53 1.3536 -2 -3 5 69.67 1.13 1.3486 -3 0 6 69.64 1.40 1.3492 -3 -2 5 70.42 4.14 1.3361 1 -3 6 70.90 1.25 1.3282 2 -4 5 71.05 5.22 1.3258 -1 3 4 71.79 1.26 1.3140 4 1 0 72.18 1.24 1.3079 -2 4 3 72.37 4.46 1.3049 -3 1 6 72.79 1.04 1.2983 5 -2 1 73.35 1.68 1.2898 -1 -4 5 74.11 1.51 1.2785 -4 -1 5 74.84 3.39 1.2677 3 -3 5 75.41 1.23 1.2597 -5 2 4 77.14 3.65 1.2356 -2 -4 3 77.17 3.89 1.2352 -4 -2 3 77.66 1.30 1.2287 -3 3 5 77.52 2.38 1.2305 3 1 3 78.43 1.94 1.2185 1 3 3 79.61 1.14 1.2034 5 -4 2 79.89 1.43 1.1998 4 -5 3 80.00 2.20 1.1985 -1 -3 7 80.95 2.33 1.1868 -3 -1 7 81.31 1.27 1.1824 0 -5 5 81.66 1.68 1.1783 -4 5 2 81.99 1.31 1.1743 -5 4 3 81.99 1.31 1.1743 -5 4 3 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.